Index of Mining Properties in Pima County, Arizona

Authors Keith, S.B.

Citation Keith, S.B., Index of Mining Properties in Pima County, Arizona. Arizona Bureau of Geology and Mineral Technology Bulletin 189, 161 p.

Rights Arizona Geological Survey. All rights reserved.

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Link to Item http://hdl.handle.net/10150/629555 Technology

Mineral

PROPERTIES

ARIZONA

and Keith Arizona 189 1984

Branch of B. by

IN 1974 Tucson Geologist

Geology

Survey University Bulletin Reprinted Stanton

of

MINING The

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The The Bureau INDEX PIMA of Geology OF Geological COUNTY, The MINING Stanton Reprinted Bulletin University Arizona Geologist and Tucson 1974 IN Survey by B. of Mineral 189 1984 Keith Arizona ARIZONA PROPERTIES Branch Technology PREFACE

Bulletin 189, first printed in 1974, has been reprinted with no modifica tions, except the redrafting of all figures. For these revisions, we thank Joe LaVoie and Ken Matesich. Pima County, which now leads the State in mineral production because of copper mines in the Pima and Ajo districts, was originally a silver mining area. Padre Eusebio Francisco Kino mentioned in his writings in 1705 that rich silver ores, probably from the Santa Rita Mountains, were being mined. Although large tonnages and values were not produced, there were many small mines. Silver and gold from these mines were probably used to fash ion religious ornaments for the missions. Prior to 1853 the area south of the Gila River, including Tucson and what are now Pima, Santa Cruz, Cochise, and southern Graham Counties, was part of Mexico. This area became part of the United States through the Gadsden Purchase in 1853. Word of the region’s abandoned Spanish silver mines, known as “antiguas,” had already been spread by American soldiers, explorers, prospectors, and Boundary Commission surveyors and scientists. “Antiguas” had been reported in the Oro Blanco, Patagonia, Santa Rita, Sierrita, Tucson, and Catalina Mountains. In 1856 Charles D. Poston and Samuel P. Heintzelman organized the Sonora Exploring and Mining Company and traveled from Cincinnati to southern Arizona, then part of Dona Ana County, Territory of New Mexico, to reopen these mines. The stockholders’ report they prepared in late 1857 listed title to 78 mines (25 near Arivaca, 24 in the Santa Rita Mountains, and 29 surrounding Cerro Colorado) and two veins, referred to as the San Coyetano Tract, 8 miles southwest of Thbac. Prospectors and small-mine operators were very active and made many metallic mineral discoveries in Arizona during the 1870’s and 1880’s. They did not realize, however, that some of the relatively small deposits they had found were merely near-surface manifestations of larger ore bodies. The large copper deposits were not discovered until the 1950’s. In 1982 nine of the nation’s 25 leading copper-producing mines were in Pima County. Are other seemingly unimportant mineral occurrences in Pima County also marks of deeper, hidden deposits? Only time, favorable economics, ex ploration, and luck will tell.

Larry D. Fellows State Geologist

March 1984 TABLE OF CONTENTS

Page

INTRODUCTION 1

EARLY HISTORY 2

EXPLANATION OF TABLES AND MAPS 6

NOTES ON DISTRICTS 7 Ajo District 7 Amole District 10 Arivaca District 12 Baboquivari District 14 Cababi or Comobabi District 17 Canada del Oro District 18 Cerro Colorado District 19 Cimarron Mountains District 21 Coyote District 22 Empire District 24 Greaterville District 25 Growler District 27 Gunsight District 28 Helvetia and Rosemont Districts 29 Horseshoe Basin District 31 Las Guijas District 31 Montezuma District 32 Old Baldy District 33 Oracle (Control, Old Hat, Santa Catalina) District 33 Papago or Sierrita District 35 Pima District 36 Quijotoa District 39 Quitobaquito District 41 Redington District 41 Rincon District 42 Rosemont District 43 Roskruge District 43 Santa Rosa District 43 Silver Bell District 44 Waterman (Silver Hill) District 46 Whetstone District 47

REFERENCES 146

LIST OF TABLES Table

1. Production Summary 48 2. Index of Mining Propert Names 50 3. Index of Mining Property Operators 62 4. Index of Mining Properties 82 LIST OF ILLUSTRATIONS

Figure Page

1. Index Map to Mining Districts in Pima County . 85 Explanation of Geologic Symbols 86 2. Ajo and Growler Districts 87 3. Amole District 88 4. Arivaca and Cerro Colorado Districts 89 5A. Baboquivari District, South Section 90 5B. Baboquivari and Coyote Districts, North Section 91 6. Cababi District 92 7. Cimarron Mountain District 93 8. Gunsight District 94 9. Helvetia-Rosemont, Empire, Greaterville, and Old Baldy Districts 95 10. Montezuma Districts 96 11. Oracle District 97 12. Pima and Papago Districts 98 13. Quiatoa District 99 14. Silver Bell and Waterman Districts 100

Arizona

fully presented

in

Comments, tant for

resources.

source records,

importance has mining

ing

to

Many mineral

in

has

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tions

to is

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provide,

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“Index

public

small

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1973

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the

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been

acknowledged. not

are

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attempt

agencies,

such

State.

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property

individuals

as

such

Bureau

output

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made

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scattered

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also

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in

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information.

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may

are

mines,

planned

INTRODUCTION

reports,

numerous

Arizona

included

compiler

become

to

be

companies

standpoint

form,

made

on

known

not

have

found.

the

or

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Thus

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also

Cochise

or

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1

ranging

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Mines

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data

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been

The

or

publications

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on

are

name

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have

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in

Pima

the

and record

due

Bulletin

County,

located.

from

covering

a

newspaper

available

indices

for

Mr. provided

information

and

future

basis

technical

their

one

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to

to

County,

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J. describe

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of

187.

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The

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the

are

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R.

the

Federal

probability

to

assistance

production

operations

clippings.

is

published

involved.

journals,

selection

is

material

Arizona”

The

designed

LaVoie,

mineral counties

persons

on

impor

grate

opera

of

every

years

min

total

re

the

and or

at

of

by

in

in

on

the

the

and

and

was

and

and

New

four

late

then

Oro,

Rita,

early

met

when

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on

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of

County

County

period

moved

metals

County.

modest

Kino

the

in placers

State veins

Gadsden

the

del

found

the

was

first

and

toCochise

primative

labor,

annexed

rule,

that Territorial

had

Arizona

Santa

by

to

the

Arizona

area.

Pima

the

by

trappers

hostile

from

Gold

Yuma

County

area

Rita

for

of

Father

of

yielded the

was

the

description

by

and

implements

and

Caliada

interest

precious

Maricopa

Indian

time

s

prospecting

prior

by

in

with

The

sections

pigments

at

Arizonac,

Ana

of

settlers

were

one

to

River

Mexican

southern

treated

Santa

frontier

mineralized

1864,

of

stone

little

detail

as

maps.

that

County

and

1500’

and

missing

of

area

made

1846-48

Gila

the

and

Dona

minor

Territory

went

increased.

Mountains

At

had

hampered

and

arrived

used

eastern

Spanish

of

of

mineral

Mexico.

the

are

first

the

the boundary

entered

Pima of

Arivaca, out

was

2

isolated

discovery

County

HISTORY

The

or

recalcitrant

in

of

of

District

have in

Spanish

War

an

The

from

early

Arivaca,

mining

to

the

November,

part

outcrops

format

area sections

slopes

near (1875),

Indians

and

extracted

limited,

the

of

Pima

settlers

a

area

records

and

Comobabi

in present

south

carried

and

under

the

Territory.

of the

metals

EARLY

Alta.

as

noted

the

Mexico.

Valley

minerals

ore, poor the

were

expeditions

of

local and

around

Mexican

appear

County

and,

County

area

worked

have

new

He

Americans

to

part

northern

along

Later,

The

the

Fathers

New

a

Cruz

1853,

the

They

the

designated

Silver-rich

States

and

may American

silver difficulties

raids,

useful

1863

Pinal

Pima

of

Production

precious

of

Spanish

Primera

Thcson,

of

was

of

all

in

prospecting

or

border

1600’s.

After

Santa

operations

of

Jesuit

who

the

Colorado,

earliest

and

Few

washes

as

region.

found

mining.

preparation

of

bandit

United

the

in

area

natural

the

surface.

late

or

The

the

the

Several

(1871)

Legislature Subsequently,

Territory

1800’s. covered Mexico

counties

created

side.

Purchase the

scouts

and

the

amounts

Cerro Sierrita, methods.

but

and

mountains.

the

als Sonora,

colorful

in the were

1600’s, the

into

search

map

known in

new

tricts. into

in the years

hundreds but

als. eked

eration

development

brought quent by

any

San

suffered opened placers

Silver major

1890’s Pacific facilitated

ity tion military

and the

1884 By

ing moved

the

Stage old name and

Some of

County

the

The

1880.

the

activity

mines

price

Xavier

and

19

increased

the

outbreak

Graham

the

open

the large

The

was

out

and

lines

Countyhave

“Pima’1

50’s

changes

marked

of

Indian

Through

early

metal

up

Bell,

aid

through

often

(1899).

hostile

Pima

at

1870Ts

rail

a

a

were

although

major This

from

pit

withdrawn

of protection,

the

fluctuations,

meager

at

in

strong

Ajo.

sustained

with

mineral

to

and was

operating

small

Cerro

Counties

copper word

American

abandoned

line

the

of

military

district

of

mining

Helvetia,

mining

came

a

the

in

the

when

discovered rapidly.

Indians

Tucson

in possible

production

the

Again

decline

the

the

1972,

late the

management

revived

revival

through

prospects

living

the

mining

accounted

for

drop

Colorado

entrance

from

Civil

first developments

newly

mines

and

military

1870’s;

operations.

Indian

activity

boom

Empire

(1881),

and

through

negation

the

the

brought

men

has

military

Spanish

metallurgical

in

in

from

Rosemont,

for

due

The

the

sporadically

of

War

large-scale,

the industry.

eight

depression

Pima

major

acquired

silver

period in

always

in

organized

subsided

were

harassment

some

mining

and

to

and

3

original

for

of

and

development

the

againboomed

Mountains

construction

the

1873; Pima

protection

in

constant

and as

under

and

openpit the

and

the

over

County

in

a

worked

Pima

mining

recovery

prices

given

1861,

ten

The

inPima been

but

the

southern

Banner

ownership

boundary

County

Mexican

in

and

silver-lead the

territory

The

years

control,

with

Spanish

99percent

of

difficulties,

Santa

companies

Pima

in

World

in

the

in

Apache

and

all

open

mines

copper

in

was

activities

were

in

1929

Twin

was

by

spite reply

subsequent

Gre

County

the

County

and

Mining

of

military

1878-1880

little

in

1893.

Silver

of

for

Rita

individuals

mine

section

County

pit

precious

common.

survey

aterville

interpretation

depression

1857

mining

reestablished

War

and

being

and

still

the

Buttes

in operation

Indian

of

to

a

deposits

copper

of

deposits

Mountains.

or

started

questions.

few

In

operation

workings.

Bell

Company

following to

scattered

Seat.

noted

Southern

although

and

and

the

I

plagued

no

protec

to

worked

the

and

parties

period

years,

reopen

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years

was

met

Santa

total were

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dis

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fre

185$

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gold

late

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for

the

the

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value

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frag

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detail

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United

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tons

amount

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in

mineral

of

produc

about

mineral

metallic

thousand

thousand

Although

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and

few

produced,

available.

produced.

appears

articles

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the

Geological

from and

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of

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270

metals

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of

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approximations. half,

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tonnage

copper

estimated

of

production,

for

1972,

articles.

57.

have

value

gold

copper,

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of

the

lack

be

Reports,

781.

value

limestone

estimated

been

County

and

close

would

total

dollars.

and

of

of

of

mineral

recent

mining

the

several

lime

eastern

zinc,

may

total

be

total

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total

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when

the

Bell,

concentrates,

of

by

produced.

have

through

thousand

of

Pima

but

to tons

tons

producers

districts

known the

and

“Minerals

Bureau

and

of

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largely

until

the

1901,

the

4

billion

the

production

County

10

data

newspaper

mineraiproduction

in

ounces

metals.

1901

in

iii

8

be

the

accumulative

tons

S.

Ajo

U.

been

to

Silver of

the

3.

metals

the of

and

and

metals

stone,

and

U.

dollars

such

County,

as

million

and

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The

million

Pima

mineral

“Mineral

stone,

cement

must

of

believed

since

leads

have

production

4

impractical.

20

prior

million

Ajo,

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in

some

the

98percent and

in

cover

worth

molybdenum

base 5.

produced

for

such

are

thousand

some

Pima

1931,

now

particularly

67

Pima

1972.

flux

of

only

from

by

stone.

roofing

precious

not

Over

of

1.

summary

record

of

tons

over

and

142

County

period

later

common

The

a

dollars.

used

about

and

of

from

and

estimate

mined

production

dollars

and

present.

value

results

is

and

does

on

publications,

tons

produced

known

the

district

concentrates,

sources

I

and through

County,

and

through

smelter

materials

lead,

oxides.

the

is

any

followed

common

base

statistics

been

total

for

accurate

of

billion

to of

precious

index

of mined,

of

a

Pima

Empire.

reliability

mined billion

silver,

such

Pima

millions

Table

An

gravel,

tons four

production

decorative

have

ganese

thousand

of minerals

County,

The tungsten

tons for

ore

makes tion

nor

1932 of

estimations to

statistics Thus

the

technical

mentary

summary than materials,

States”,

The

annual

Survey,

County

and

duced, one ore be one of the most heavily mineralized areas in Arizona. Copper is the predominant metal found but other metals and nonmetaffics also occur in scattered deposits. Most min eralization is closely associated with Laramide intrusives which intruded olc1er rocks ranging from Precambrian to possibly Lower Tertiary formations. In a general way, the intrusives and strong zones of mineralization appear to have a northwest striking alignment which is sometimes further marked by later Tertiary intrusions, suggesting deep and continuous structural breaks in the earth’s crust that may have been present for a long period of geologic time. Such a structural feature is strongly suggested along a line through the Silver Bell, Thcson, and northern Santa Rita Mountains. Other similar structural lines such as the one from the Arivaca area through the Quijotoa-Brownell Mountains may be inferred. Tertiary block and thrust fault ing has complicated the interpretation of those possible in trusive and mineralization trends and the wide valley and basin areas between the mountain ranges effectively mask the evidence of the continuity of such trends. The exposed mineralized outcrops in this eastern part of the County have been well prospected and developed but many of the moun tain shoulder and rock pediments, covered with varying thicknesses of alluvium, remain to be carefully examined for mineral deposits. In the western half of the County, only one major deposit, Ajo, has been found but in that section most rock exposures are post-mineralization volcanics or less favorable pre-mineralization Mesozoic intrusives or metamorphics. However, some scattered Laramide intru— sives and Paleozoic sediments do occur in the western area and would indicate that the presence of favorable loci for ore deposits could have existed and now may be hidden by later volcanics or valley alluvium. The Papago Reservation covers almost 42 percent of Pima County and although no major mineral deposits have been opened up within the County in that area, there is no reason to believe that such might not exist. Major deposits occur to the East, West, and North and scattered mineral ization is found in the Comobabi, Quijotoa-Brownell, Santa Rosa, and Cimarron-Sheridan mountains. With favorable negotiated terms for mineral exploration and mining leases within the Reservation, the area could become an important hunting ground for ore deposits in the future.

5 Major mineral deposits will continue to be found in Pima County but with increasing difficulty and expense, providing onerous or prohibitive restrictions are not placed onlegit imate exploration, development, and mining. EXPLANATION OF TABLES AND MAPS Four tables, a set of mining district maps, and a refer ence bibliography are included in this index. Table I is a production summary, partly estimated, of base and pre cious metal ore from the mining districts of Pima County through 1972. Table II lists property names alphabetically with the mining districts in which they are located. Table III lists alphabetically the names of mining property owners and/or operators with the associated mining properties and districts. The lists of mining properties and owners or op erators is by no means all inclusive. It includes those names found to be most well-known but may not list all names, including present owners. Names of mines and owners have changed frequently and this practice often complicates the task of identifying individual mining properties. Table W is the main index, giving briefly, detail informa tion on the mining properties, listed alphabetically by dis tricts. The locations are given by surveyed or protracted township, range, and section, and wherever possible to the position within the section. Mineral products are listed by chemical symbols or by name, generally in the order of their apparent importance in the deposit. Minor or trace elements identified are shown in parentheses. The general geology of the deposit is briefly described, based largely on reports listed in the references. The type of operation is noted briefly and the production figures are based on re ported or estimated figures. The references cited are list ed in the bibliography. They are not all inclusive but are believed to be representative of the most informative data available. The small scale maps show the location of the mining districts in Pima County and the location of the mining properties within the districts. The numbered locations are keyed to the respective numbers shown in Table IV. Major geographic features; surveyed or protracted town ship, range and section lines; and the generalized geology also are shown. The bibliography at the back of the bulletin includes all references cited in the text or in Table IV.

6 mountain atively worked bhrough animals, Domes region Viountains was lieved gneiss The cached Quaternary-Tertiary

ping AQUA

Yuma structural the ered dikes

Company, surface,

early shafts copper and ed the

active economic conditions and

AJO

Ajo County.

as Indian

The

The

The

The

NOTES

past

location,

once

extreme

the exposed

the

but MINING Mountains

possible

and

Agua

were

1900’s

district

and to of

DULCE

with district from

low, hills

Ajo mineral were

and

work the

ore

Spanish

Luke-Williams block

since indians, covered pedimentextending

be

extreme

only

oxidized,

The and

features

Ajo.

warrented

mineral

Dulce

mining

area. ON died in

DISTRICT opened

were

included of

rugged,

and

but

desert a

meaning

sunk

probably rocks

the

the

mineralization one, faulting has

now it

name MINTNG

Mesozoic

small fNDWIDUAL

Several

and

exploration.

only

word

in mountains

was

byvolcanics,

O’Neil and

mining

shipped.

district

O’Neil

been

district southwestern

lies

are that on

up

deposits.

the condition, the

quartz-fissure

have

a

strongly

basaltic travelers

“Ajo” more

close

areas

“red

but

for spring

this few

undoubtedly

within apparent

excludes goldand

mining DISTRICT Papago area. prospected

Air

was

district,

age. Hills,

except

garlic, been

do

paint”

tons

is property

extensive

to is

probably

of Force

out

MTNING

located

not an

the

No or andesite

This

dissected,

7 surrounded

scarcity

is the

A town now and

classed

schist mine

of

lies copper

from old

under

Cabeza water for but Pima detail available appear

the

few

in

hand-picked

old

covering

prospectors

east-west Range

for

accounts veins

eroded

desert

in

of

reference

in minor

its in

of

DISTRICTS area

development. reconnaissance

isolated

came

desert

and

suggest

the

the Ajo of

mineral

prospects

County.

and study

seep the

as the

spelling

Prieta

to

water, sierra-type,

or

which,

desert

granite,

by

Sonoran at prospector

away.

coarse-grained

but around be in

values

the

Papago late

from

along

for

used

of

chain

trail western present

an

that favorable

remnants

gold-silver—

to

Game Agua

the that

deposits

the

is the The

1800’s and

extensive

along alluvium.

No

the

inweath

a

the near by the the

between basaltic

geologic

all Desert passed Several

of

geology

Mining

strong range.

Dulce isolat Papago

name

Range

map onion

wild

area Little rel

from

Pima who

same

with de—

be

and

the

for

of

in of

in

the

and

and and

fol

sed

and

pic

fault rocks

mon area

base been

west

moun

fault

except carve(

Paleo Chico

spotty

copper

period, or seldom

and

been extend

border

strongly

evidence flux

intrusive

by

limestone continued

The mineral

Mesozoic,

a the

have

associated

and

inthe

but

maj

been invaded away

block has sedimentary

the

exposed

quartz in

of fossiliferous, activity,

emplacement

intrusions

sediments

fanglomerate, the

gives

in time

are

formations

extrusive

time. but by

and

dissected

have topographic

intrusive smelter

The

copper the economic

covered

mineralized later

facies

large southward

eroded and

placers

minor,

Paleozoic

Laramide that exposed near-by

lava, and

in

intrusive

and a

granite

and accompanied the

The

of older

During dioritic

is

volcanic

recent

bodies,

Tertiary

the gold

Mesozoic and

stock

flows.

district

along

activity,

to

strongly Since

border

mostly was the

main ago,

evidenced

found

one siliceous

In

Laramide

altered,

area.

and originally

secondary

disseminations

the

of tuff,

as fanglomerate

quartz lava

but

geologic the

and draining area.

and

for Early

8 local, tilting,

the Scattered,

blocks.

as outcrops

the of

intrusive,

Mesozoic

intrusion.

was occurs in

to

years

diorite

dikes

in

events.

volcanic

ragged,

are

thick and

monzonite

the

boulders Pass

Erratic

thick

and

fault

also

district.

mined

mineralization,

present gulches district during

present breccia, Tertiary

Small,

in

and

Precambrian gneiss

fragments

in low,

quartz granitic

faulting, grows

million formations there

The

granitic the pinnacles Ajo the the

dry

quartz been

volcanics.

were geologic

came

hydrothermally

63

in

of

sulfide

Growler

from

that

the

fractures

and

the

pegmatites with Also

the

amounts.

blocks

limestone andesite

metamorphic, volcanics

have

and coarse

also uplift,

of

of

age

part

lily

sedimentation, many created

about

the Mesozoic

pegmatites

relatively minor

erosion.

preserved along along

by

hills, in stock occurs fault

nearby

mineralization

composite significance.

Hills

in Precambrian

Ajo

sedimentary

side

the

of

the

Cretaceous have

prong

The the

these scattered

economic Some

out tains, imentary, like range zoic Paleozoic, ment in formations.

volcanics large ern zonfte where vadedsouthwesternArizona strong period, northern containing lowed interbedded of erosion, ing

ture. of

mineralization mainly ing copper with ing zones in brecciated ization

minor and Shunie worked

‘ide

)oration. \rizona Dornelia ;ulfide rolcanics cquisition )onate )loration. 3eneral ictive rizona netallurgical Dosts, ;rade, Elowever, hand-sorted bion he deposit

)ver ipitation opper essfu1 ‘oad vater thie the essful was were . Df minor

napping,

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ion

he

rom

ort

sound,

In

California

The

1924

mineral

reserves

1700’s.

became

deposit

recommendation

where

by

to

line discovered

1911,

open

used

supplyfromwells

red

New

amounts

or

or

ore,

ore,

exploit

and mining

ore

the

Manager

Mining

due

was

in

began

Copper

to

economical

of

drilling,

locally

In

iron

A

unsuitable,

that

pit

as

A

1929,

of

Phelps enlarged

it

known

Cornelia

Ira

a

from was

connect

rights

product

the

Tn

worked

to

the

thorough

men

1950, pigments

large,

mining

went

of flotation

schemes.

all

oxides

venture.

and

Company, 1855,

the

in

the

of

copper

Joralemon,

by

outlined.

discovery

of

and

smelt

carbonate

Company

formed

rights

1916

the

feldspar

as

test

to by

Dodge

subsequent

Calumet

a

high

scarcity

the

with

low

was

to

and on

after

when

the the

copper Copper

leaching

and

and

boat

vein-like

unsound,

by

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examination

concentrator

pifting,

the

handle

carbonate

early

at

Shipments

a

grade,

to grade,

New

the

the

shipped

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deposit.

the

green

examined

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small

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to

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and

9

ore

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leaching of

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indians

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Cornelia

smelter

Company

European

1917,

all

Gadsden

process

early

orebody

subsequent water, were

geologist

and scrap

latter

absorbed

Arizona,

copper secondary

and

oxidized

deposits

development

were

scale

line

to

Arizona

the

With

production

ore.

of

Yuma

was

the

some

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was

sometimes

long

England

not

attemps

high

and

at

completion

of

mica.

copper

was

company

in depleted.

Joralemon’

branch

high

by

To

which

carbonate

property

Purchase,

John

to

led

Gila

made

economically

prospectors.

put

before

electrolytic

1931,

the

for

by

in copper

underground

by

the

mining

treat

grade,

handle

copper

development

built

to

transportation

into

animal

the

Bend,

C.

property

for

Calumet

in

concentrates

Calumet

to

of

held

Spaniards

of

a

by

the

was

Greenway,

the

1930 the

fraudulent

mine,

bordering

very

operation

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at of

that

ore.

smelting.

of

The

corpora minerals

oxidized

the

and

geologic

s

most

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deeper

deposit

the

a

favor

Ajo

trans

ample

taken

group

when

rail

cor

pre

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smelt

for

through

County.

include

of

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deposit be

value

age

contain

the

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mineral

of

dissecte

extensior

be and

have

the

ounces

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and

pegmatite

intrusions

amounting

as

in

establishe

ore

depression

of

not

to

large

copper.

expensive

ore

total

the

and

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the

usual

Pima

a

gold

edge

flux

metal

outside

district

of

a

the

of striking

the

breccia

blocks

mine

limestone

can

tilted,

found

and first

district,

but

to during

of

the

covered

of

million

in

alluvium

strongly

ranging

than

the

for

and

from

tons

deposit,

tons

from

are

and

Laramide the

associated

19

Ajo appears

outcrops

of

8

major

exotic

position and

cover

once

constructionpurposes

smelter

yielding

western

of

1.

the

gold,

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lower

shipped

age,

Cornelia

period

mica

difficult

valley

uplifted,

content

have

northwest

inferred

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for

copper

a

of

million

of the

one

is

deep

other

coming

Small

in

of

beds

output

be

and

to

deposit

by

silica

each

be

copper,

sediments

from

quartzite

10

gold

New

extrusive,

for

350

isolated

of in

ragged,

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out

flank

used

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tens

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for

will

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can

and

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along

silver

the

A

The

ounces

production,

deposits,

area

and

formations

previously

low,

mineral

few

some

district,

tons

however,

appears

gold

they

Paleozoic

stone Paleozoic

except

a

and

carved

lies

obscured

to

trend

amounts the

the western

of

Paleozoic

be

1933,

production

Quaternary.

somewhat

and

district

porphyry-type

that

placer

and

million intrusives,

to

Arizona.

Only

a

was

dollars.

possibility

the

which

to

volcanics,

mining

gold,

and

DISTRICT

and its

feldspar

55

the

million

content,

continuous

relatively

ounce

covers

8

amount for present,

largely

district

1.

1916

metal

to

The

from

In

of

later

in sedimentary

intrusive

concentrates

chain

2.

gravel,

if

along

complete

1932

is

billion

one

Substantial

trend,

characteristics. in

and

Amole

This

believed

5 deposit. Ajo

high MINING

indicating

total

schists

the

copper,

of

and

would

Since

been

1.

occur

sits

of

but,

about

sand,

this

intrusives,

place

southwestern

respect

The

about

Arizona,

The

the

The

stone,

in

tions,

Precambrian blocks

ed

in mountain brian

AMOLE tains.

ization, find.

of out

may

1930’s. ization

in

in

Paleozoic tural volcanics.

shipments

depo

type

for

1972,

molybdenum recovered

to

silver, atively

over

ing

of

have

ers.

years handle large, but rocks,

related. the have stock extrusion

logical sections. posits pears sions, veins

blocks; intrusions,

ment rhyolite stock late dates stone precious the The Americans. Saginaw and small lead, in years mines has tently cept continued in of

sible

The

Metalliferous

Prospecting

most limestone size

also

Spanish smaller

major

been scattered

1600’s

been

for

sulfide

intruded

main

copper, for porphyry-type or or

back

to

amount

as from

mainlyJurassic mining

Laramide

and

setting are

or

and

various

tuff

cases

periods be

close At

Hill lenses

well

cement metals of

In

additional the into

prospects too

economic to

mass weak

and

settlement

related

the

bodies mainly occurring

has the dikes rhyolite

the

and

in

The

the major

and

activities

of low as

their

for the

the

still to

surface

late

been

was

same Tertiary

with

1898.

intrusive

mineralization

dissemination

clay block

of

of composite

smelter Tertiary by manufacture. founding

mineral

molybdenum

northwestern

first and

in

1900’s,

in the

high not

production

largely

scattered, uplift, took 1800’s

intensified

metal

copper

the

grade

are

product used

limestone

has sulfides;

general

stocks

mountain

faulting, at Although

around

and

fully

deposits

base

have

metal

place

Spaniards,

Tucson

scattered

and

been

flux,

and

in

for

of

most

plugs Cretaceous

producer; to erosion,

to

granitic

11 to

deposits.

the understood.

been

the

of occurring

metal Quaternary

construction extrusive 194$.

be

prices.

the

small,

extracted. time,

in was

ore

the

of

Some

and lenses

to

Tucson

in generally

the chain

after section

deposits

sporadic

and

were

San

in

worked

sulfide the

limited

present

periphery the

Laramide

was

through

district

the

very

to

Several

volcanism,

operations

Xavier dikes.

to

Mexicans,

basaltic

strong southern

consists

the

considerable

exploration

redbeds irregular,

crudely

The

or

Amole

Mountains

early

taken

quartz

of

southward

igneous

s

limited.

economically

were establishment there

exotic in

to

mining

narrow,

the

a

Old

purposes

the

has The

the

Mission

hundred

complex

the

intrusion

1770’s.

out

and

of

andesite

of district

district

and

and

worked monzonitic

Yuma

district

intrusive

appears

too

been

were

and

production known

limestone Mesozoic

rocks.

and

the

intermit

In replace

probably Tertiary

attempts

for

arkose, eastern

may

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quartz silver,

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recent

lime

in

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large

small

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geo

near

pos

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the

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of s.

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335 Old

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may have such dis

Ter

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of lens would

Guias

“little partly

silver,

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molyb

the

for Spanish sierra-

17

34 of

from

the

or

and La

occurred

of

of a

structural porphyry, Mountains Some southwest,

part and

Arivaca.

in

under

copper,

named

placers

from

the

although flanks,

Spanish that index,

of some

metallic grade,

about

of tons and

limestone Luis

as

reed&’ age.

to fractured,

shipped.

ounces the

production irregularly

the gold clusters

major

17 the

of

low dissected, granite

and

trend buried probably

tons Laramide production San faulted

northern

A in On intruded

of and

opportunities

major, is of

been

produced tons

after

known

metal

that

265 it

Mountains, a

the

vegetation where

and large, and

amount

About

settlement used strongly northwest

metal

down

thousand a

deeply

for”liftle

has in were Laramide a

in

the zones.

been as

Luis

27 dikes

along

been be the of of elongated,

of

named about

evidence

million Guias Arivaca

gold.

would flux 12 swamp

favorable be to

word

manufacture

known San

mining

not

occur

have distributed.

deeply

12

of

faulting,

zinc,

may core

the

sometimes low,

displays appears Las

1972 stock

the

value

old

and

by or name

of

has district,

most sediments

conglomerate

may

would Indian

of

although the

Over numerous

smelter

the

cement

area

County,

widely

or containing ounces

total The

exist,

minette of

Mountains,

tons The mine, central and DISTRICT

is

part

through

for

Pima a the 000. and

area mining granitic

from

ore

district

197

a describing

The

northwest

silica

they

indicated

Pima

estimated

deposits area moderately

volcanics

black

Creek.

Guias

of of rubble with

of

if a

as the

$229,

Spanish MINING

thousand district.

lead, is and

concentrates

and area.

district total phases

Las

include

mine. northern

Amole to Arivaca volcanics

tons

water”,

intrusions. quarried

tons

of

producing range

one

mineral general

some

southern

early

The

Arivaca The

The The

The

sand

and tons sand

Amole denum Yuma

mineralization tiary be eral trend district, den deposits,

been

Valley the respectively,

ments ARWACA of

in

mining describing

corruption ium-grained,

would fence occur, chytic

aplite, ingquartzveinsfollowfracture

type ozoic metamorphosed. an sected, cluster of rolling hills and subdued mountains cut in a thick series of folded Cretaceous sedimentary beds partially metamorphosed by a Laramide granitic intrusive. Southward the topography becomes more rugged with higher and steeper mountains and ridges separated bycanyons and washes. A large Laramide granitic pluton occurs on the western flank. To the east the intrusive gives way to met amorphosed Mesozoic sediments and overlying Cretaceous volcanics. The mineral deposits of the Arivaca district consist maiiily of irregular, lensing, quartz or quartz-calcite veins containing spotty, and generally weak, base metal sulfides and precious metals and/or tungsten minerals. In the south ern and eastern sections of the Las Guias range, the sulfide— bearing veins occur in both the intrusive and bordering met amorphosed sediments and volcanics. In the northwestern sector, tungsten mineralization predominates. In both cases the mineralization is often associated with intrusive dikes. Weathering and oxidation have enriched the gold and silver values near the surface and erosionproduced placer deposits of gold and tungsten on the lower slopes and in many washes. In the San Luis Mountains, known mineral ization is more scattered and varied. Along Fraguita Wash, south of Arivaca, spotty lead, zinc, and copper sulfides occurred in fissure veins cutting Cretaceous sediments and volcanics. Economic values, mainly in gold and silver, were confined to the enriched, near-surface zone produced by weathering and oxidation. Farther west some spotty base metal and tungsten values are associated with the Laramide intrusives and bordering formations. Over 150 individual mines and prospects have been worked in the Arivaca dis trict but few, such as the old San Luis or Oceanic mine, have produced as much as 100 or more tons of ore. Due to their limited size and the small tonnage produced, most of these workings are not listed in this index. The Arivaca district was one of the earliest areas in Arizona to be prospected and worked. The first Spanish explorers and settlers, in the late 1600’s and early 1700’s, extracted gold from the placers and mined the superficially enriched, weathered veins for gold and silver. Intermit tent, small-scale mining continued in the succeeding years with reduction works located at Arivaca where water was available. The main deterrents were hostile indian and

13 bandit raids in the 1800’s. The presence of tungsten was recognized in the early 1900’s but not mined until World War I. The greatest activity in the district took place from the early 1930’s to early 1940’s, when at least 100 pros pectors and small miners eked out a living from working the gold placers and spotty vein deposits for gold and sil ver, as well as some tungsten. In 1935 there were over 35 small producing mines and prospects, mostly yielding a few tons of ore for the year. Since 1941 there has been only sporadic mining activity with little or no production. The total estimated and recorded production from lode mines through 1972 would be some 9,300 tons of ore con— tainingabout 5,300ouncesof gold, 45,500 ouncesof silver, 115 tons of lead, 36 tons of copper, and 8 tons of zinc. A few thousand ounces of placer gold may have been produced prior to 1900 and about 350 ounces since then. The total estimated and recorded value of the base and precious metal output from the Arivaca district would be about $369, 000. Accurate data for the total tungsten production is not avail able but estimated at 250 tons of tungsten concentrates con taining 60 percent W03 and having a value of about $400, 000. The future of the Arivaca district as a producer of mineral products is questionable. The apparent mineralization, al though widely scattered, is in relatively small, lensing veins with spotty and low values below the enriched surface. Except for the Las Guias tungsten area, no over-all detail study of the geology and mineralization of the district is available. However, the presence of Laramide intrusives, a northwest striking structural and intrusive alignment, and the zonal arrangement of the mineralization suggest that detail geologic mapping and geochemical sampling might reveal favorable loci for deposits hidden under vol canic or sedimentary cover.

BABOQUWARIMININGDISTRICT The Baboquivari mining district of south-central Pima County covers the full length of the Baboquivari Mountains northward from the border with Mexico, including the Quinlan Mountains and Kitt Peak at the northern end. Babo quivari is the corruption of the Papago Indian name for “nar row in the middle” which aptly describes this long, narrow, rugged, steep-walled, sinuous range. The serrated crest in the central and southern sections marks the southeastern

14 boundary

peaks

located, especially known Quinlan

from gradient, iments, sional metamorphosed

milky at itic cia, shale, merous,

west-central intrusive The wide and glomerates, pattern areas. Quijotoa

relatively beryllium. metals,

with more corded

in fault quartz sector chalcopyrite, south.

cally, teration are

In

The

the

the

rocks

the

and

only

the precious the

the

shear

have

quartz toRoskruge,

coves

faulted and zones north

than

known

Gold

as and

production

strong, some

and This locally, and

predominant extending and

molybdenum,

central of

Mountains steep

is irregular later thinly rocks

arkose invaded

small

at Kitt

the

special

100

noted Kitt

Some

zones, and

quartz-calcite and and

and the

tungsten dikes,

flank.

and the latter rhyolite

mineral

and

and

galena,

mountain rock

Papago Peak,

tons. crosscutting,

covered, and in

were block-shaped

silver south reentrants are Cretaceous

with part Allison swarms

along metamorphosed

andesite base

fifty

the from

a

since the

sills,

that religous The

area aplite,

spotty

structural

formations dotted

gangue

well-defined,

tuff. interbedded

A on mineralization names

deposits

of

ends

tungsten,

and

older

original

the Indian

occur

metals,

mines

range

general

cut walls 1900 south

mine,

to

the which

and

of

rock

occurrences

Laramide

sphalerite veins

veins with

and

pegmatite, the as

in

minerals.

15

intrusive

through significant

range,

formations

of

northwest conglomerates,

with veins

Reservation.

but

is tower

numerous

and

well

which

of of

northwest. trend pediments

surveyor manganese

and early,

rhyolite

a

bands

are

the zoning

manganese,

and

only ande

the

in national Arivaca formations

the

prospects

crisscrossing

as cut

molybdenum

result

the

oxidation coarse-grained of

close Tertiary

are

the

is

in district

mostly

site

spotty dikes

a

on

of Strong local

of

Baboquivari

the

pattern

dacite,

part striking

numerous,

very for rocks

places. volcanics

north

and of precious cut

rugged

both

flows

extend

of

Cretaceous

association

observatory

to

and The

the

the and personalities

by occurrence

block

of fluorine,

few

predominate

in

include wall have

at to bedded

and flanks.

graywacke,

are

and

is latite, area.

numerous iron

the

deep

and a

faults sills. Papagos,

foothills. The

occurring north

least

produced

outward

weather

apparent regional

pattern. and

faulting

rock

had mainly

central

on

central lensing

Peak.

brec

gran

oxides

many ped ero

Low con

base

Nu

with and and

and

re the and

Lo the and

is

al

of is

of

of

and the

and 24 and

and

sur

000

sed

has

out

along along

1972

along cop

south, man

of

dozen some 1955,

value There,

central also

(Clark,

14,

Allison

surface tons the Spanish

a of

intruded

tungsten

sizeable

district. eastern

precious

About

the

mines and abnormal be

the

shears but

total

found

The

of much Since

Fluorite the the To

fluorite, long of

strip. tons

Baboquivari near through worked

early about

with

first

coatings

zinc. of The

zoisite-bearing

veins. weathered

On

of 1930’s, small Cretaceous

was

122 the

200

inaccessibility would Reservation below

a

of

enriched

been the

spaced sediments local

the

17

mineral

1800’s. in

Tungsten zones.

the

in

values

periods

sixmile district

mainly and

on

entry.

in

and

production

was to

throughout

have Indian

late

district. volcanics. superficial.

containing silver, over

producer

attention

fault general

amount

1966)

pegmatite widely

found

gangue

garnet, silver

of and

the

the

values. ore

pediments

the production

the

narrow in

is

discontinuous

1890,

Cretaceous the

occur

mineral a

and

of

16 where operated

limited

Papago

major

major

mostly

mineralization small

metamorphosed the placers

outcrops development reported

but

andesite associated until

from

major

Baboquivari

a

by

ounces

the

a the concentrates

Meeves,

with and

on

occur epidote, metal

gold and tons

least

been

along

and and

were

the

and

gold oxides

continued are

enriched

is

and

cut

normal

attracted 000

come

shallow, at

and

quartz

foothills

000 has

it mining

been also

tungsten

with

within has

and

spotty

from

173,

faulted

oxides

gold

lead,

mines

57,

from

located have

mineralization

has

tungsten

from

and

in terraces 1962;

precious shallow of

prospectors

rhyolite

of

metamorphosed

main

estimated

flank

been

are of ore minerals dikes

narrow, in supergene in Locally exploration delayed and

concentrated

bed gold,

Manganese

mining

and metals some

small

and

scheelite tons copper

The has

Some prominent production

as of

dating

for total

Balla,

be tons

000.

12

scheelite have prices.

northwestern withdrawn

Mexican

range base

igneous

western

more base

The

The

Mineral

zone. ing face.

washes spotty the prospects minor fractures by the quartzite iments. district. 1956; found fractures beryllium occurrences occurrences and the operation mine, Sporadic or crops ganese high and

ounces short would per, manganese of $603, district

the been side, however, considerable sulfide mineralization, in cluding molybdenite, is scattered throughout the central zone which suggest possibilities for a hidden porphyry-type deposit along the northwest striking structural trend. A careful, detail geologic mapping program in conjunction with geochemical and geophysical investigations would ap pear to be warrented.

CABABI(COMOBABI)MININGDISTRICT The Cababi or Comobabi mining district covers the North and South Comobabi Mountains and the neighboring Ko Vaya Hills, lying in the eastern section of the main Papago Indian Reservation to the North of Sells. Cababi is from the Papago word for “hidden springs”, Comobabi or Comobavi from that for “hackberry tree well”, and KoVaya for the words “badger well”. The North Comobabi Mountains are a sierra— type range carved out of a central mass of Laramide gran— itic to dioritic intrusive. Cretaceous andesitic volcanics cover the western end of the range and metamorphic gneiss and schistof pre-Laramide origin occurs in the southeast ern corner. Well-formed, eroded pediments extend outward from the range. The South Comobabi Mountains are a more shapeless mass of eroded peaks and ridges cut from a variety of faulted strips of Cretaceous sediments and an— desite volcanics, metamorphic rocks, and Laramide gran ite and diorite. Scattered intrusive Tertiary dikes and plugs are common. Both the north and south ranges are fault blocks aligned in a general north-west direction but with numerous cross faults. The down-faulted block between them is surfaced by Tertiary sediments and volcanics that have been eroded into rolling hills, ridges, and plains. The KoVaya Hills are a collection of ragged, steep-sided, fault block hills cut from thick Cretaceous andesite flows. The known mineral occurrences consist mainly of rela tively small deposits of silver, gold, copper, lead, zinc and tungsten in quartz-fissure veins. Spotty, rich concen trations of gold and silver, as native metals or chlorides, occur near the surface as a result of the oxidation of the sparse base metal sulfides found in depth. The predominant gangue mineral is a coarse-crystalline quartz, oftenbrec— ciated by later movement along faults and shear zones. Dolomite and minor barite may recement the veins. Traces of molybdenum, vanadium, and other less common metals

17 have been detected in some deposits. Wall rock alteration is often strong and the andesite flows show sparse dissem inated pyrite and base metal mineralization near major fault zones. The Picacho or Cahuabi mine, dating back to the late 1700’s, was the first mine of the district, yielding consid erable amounts of precious metals in the early days. Other small but rich gold and silver prospects were worked spo radically throughout the 1800’s. Several copper occur rences have been prospected but not developed. The most productive mines have been the old Picacho silver property, the Jaeger gold deposit, and the Little Mary or Steppe lead, silver, and copper mine. The total estimated and recorded production from the district through 1972 would amount to some 6, 500 tons of ore containing about 102, 100 ounces of silver, 3,450 ounces of gold, 182 tons of lead, 92 tons of copper, and two tons of zinc. The amount of tungsten produced would be insig nificant The total value of the metal production would amount to about $245, 000. The mineral production from the Cababi district has been relatively small and such prospecting and development work that has beendone has failed to disclose any major orebody. However, the geologic characteristics in the district are not unfavorable. The South Comobabi range in particular lies along a strong structural and Laramide intrusive trend. Further geologic study and geochemical sampling might well indicate favorable loci for economic mineralization that might be hidden under volcanic or alluvial cover.

CANADA DEL ORO MINING DISTRICT The Canada del Oro mining district lies along the border of Pima and Pinal Counties at the east end of the Santa Catalina Mountains. Most of the placer and hard rock min ing activities of the district took place in Pinal County but some placer operation along Canada del Oro wash did ex tend into Pima County. The gold-bearing gravel was derived from small and irregular gold-bearing quartz veins in Pre cambrian granitic rocks at the northwest corner of the mountain range. An estimated 110 ounces of gold, produced sporadically from the early 1700’s through the 193 0’s, may have been recovered inPima County. The prospects of any additional, sizeable recovery is questionable.

18 Quaternary to

posed outskirts morphosed Catalina perienced south volcanics derived little The quartz, ing a pylitized nite,

cutting lars. ization withdrawn ounce duction and about

flank could

CERRO 191$. quired low, the areas a

series

wide

The

Copper common

The

a

The

The

The

wall.

northeast

rough

Tertiary

developed

disturbance

base

and

and of

One Catalina or 207

of

of

of

mineralization COLORADO

Catalina

breccia

Cerro

its quartz Cerro of occurs

of

pyrite,

from

the

gneiss

would

gold.

fragments

mining

fault

of

Tertiary

and

mineralization,

isolated tons

both

mine,

name.

oxidized

but of

some

history.

from

several

outwash

Cerro Thcson.

the

gneiss.

older Pantano

of

Colorado veins. Colorado breccia

The

flatter or and of

only

be

normal

zone

from

and

district

the activity

the

5, MINING

mining Santa

copper, Santa

in

It

resumed

range

rhyolite

total

000

mined

times

Colorado

of

is

formations

Arivaca minor the

copper in

Pontatoc,

in

alluvium.

the

The

The

was

slope

older

in

and

Formation

a

Catalina tons Catalina

and

the

Pantano DISTRICT

value

mining

Mountains

entry

in

is

local Tertiary southeastern

carved

foothill and

mainly

2,200 in

steep

discovered along

Arizona,

gneiss

and molybdenite.

in

reverse

of now

along

minerals, 19

granite,

district 1907

Mountains

certainly

was

the

accounted

and

hand

area

ande

that

Formation

mining

mountain Mountains

district,

The

ounces

within associated

by

chaleopyrite,

fault

Pontatoc a is

to

on

about

it Pantano

are

site fault

movement,

in

may

sorted

a

erosion

lies gneiss

1910

is quartzite, with

the

conglomerate

appears Pima

and

silicified

a is

district

a in

of

doubtful

volcanic

from

107

for

relatively

trace

have

footwall

on one Known

residential

flank

and

which

Laramide

associated

silver,

in

along

located

mine

Formation

narrow

ore

probably

County

thousand the

the

from

the

of

which

in been

to

minor

separating

breaks lies

containing

producing limestone

total

the

it

southwest

area.

flows the

mineral

and northern

if

1917 have

side

and

has

in

a

mining cross

meta

just

small.

at

oldest

hang

time.

it com

thick bor pro

pro

area 1906

with

was dol

and

ex

the

one

and

had but

ac

and

off

to tuffs intruded by Tertiary dioritic plugs. The pediment ex tending tothe southwest is cuton an older complex of Cre taceous volcanics ranging from quartz latite porphyry to various phases of andesite porphyry flows, tuffs, and ag glomerates. Andesite porphyry and rhyolite dikes, and the Laramide dioritic intrusives cut the volcanic sequence. Moderate folding, strong fissuring, and extensive jointing is present but no evidence of major faulting is evident. Numerous mineral occurrences are present but most are small and irregular, consisting of narrow, lensing, struc turally controlled, epithermal quartz-fissure veins con taining spotty amounts of base-metal sulfides, silver and mercury-bearing tetrahedrite and locally, sparse cinnabar. The mines, such as the major producer, the Cerro Colorado or Heintzelman, were worked for the deeply oxidized and enriched mineralization containing high silver values. Probably hundreds of small surface prospects have been opened up for silver chlorides in the outcrops of small nar row fissure veins but few had any significant development or production. The most notable feature of the district is the high mercury content shown by surface and airborne detectors. The early Spaniards and Mexican prospectors exploited the surface showings for silver in the 1700’s, using Pima and Papago Indian labor, and crude extraction methods. After acquisition of the district by the United States in 1853, Colonel Poston reopened the Cerro Colorado mine for the Sonora Exploring and Mining Company, renaming it the Heintzelman after General Heintzelman, President of the company. It operated only intermittently through the 186 0’s and 187 0’s due to hostile indian activities, as was the case for other smaller properties. The ore was treated at a small stamp mill at Arivaca. Since the depression of 1884 there has been little activity in the district except for small operations in the 1920’s and 1930’s by prospectors looking for small, enriched silver values and at the Mary G. mine. The total estimated and recorded production from the Cerro Colorado district would probably amount to some 5, 000 tons of ore containing about 377, 000 ounces of sil ver, 460 ounces of gold, 16 tons of copper, 32 tons of lead, and less than one ton of zinc, for a total value of $362, 000. The district does not present encouraging indications for major ore deposits. There are many small and widely dis

20 [ack relatively )ersed CIMARRON major relatively the

ferred within and County.

that and Mountains barren, ranges

rounded

Precambrian mapping intrusive,

in Partly occur the

composed Mesozoic orogeny the Mountains. ably cover erosion pattern. The tain There

tains. alluvium

district limited along

apparent

Sheridan

was of

the

The two

reportedly

area

Cimarron economic

extended the evidence to occurrences

shoulders only

metamorphosed

form

northwestern older used appears faults

ranges. Cimarron known mountains

MOUNTAINS weak, shows as

shallow strongly when Papago mainly created

is

Extensive were

as formations of

obscures as and

the Mountains

sparse, rapid

scifist Tertiary

an by

exposed small

rocks. to

base

and a

Salt epithermal named of extrusive a were Mountains over deposits

to aligned

to Mexicans large Indian large

into Quaternary

depth The

the

any

be

pinching is dissected,

near-surface,

and fracture

Well of and

MINING

and pediments

the fault

scattered,

the present a a abundant

sector Subsequent after the strong rhyolite Sheridan

metamorphosed block in mineralization

and granitic

Paleozoic Reservation,

phyllite general suggests

Spanish precious hills

actual

north-northwest

in

district, area

blocks the rocks.

surrounding mining

to

their DISTRICT character

the General

of

of

zones.

eroded

eastern structural describe of

geologic sedimentary,

21 at edges

extend

mineralized Precambrian and relatively district

northwest

and in to

and word

Mountains

surrounding

in that

the

metal one limestones Reconnaissance district,

dioritic secondarily embraces faulting, the

basaltic

generally

a may,

Philip

of

out in

Cimarron Economic narrow the out of

part time area. for

but

the

the during form

mineralization valley are north

the deformation,

of

on possibilities

in

striking striking wild

Sheridan. intrusion low,

the mountain sometimes

fault of to

and

the fault unfavorable.

andesites part, volcanism, deposits,

structures

schist the metamorphic, divide and The

hills. and central weak,

the enriched the the

basins spotty

buried or

in

Cimarron values block Mountains.

ragged

quartzites

exposures. blocks

represent Sheridan untamed Cimarron Laramide structural south

group part

geologic

exposed All between

occuring invaded

These sheep

Pima

moun and

moun and prob where the

for re

are

of

zones

at

were still

are

and of to of

the ii

tc of of

an

in

40C Thc for

has and long

dis

pre

dis or

cuttin

that foot distric might

sili

be Moun Large prob

500 moun strong

oxides Mountah Coyote down

mainly PaleozoF then. the all

amount having

amount study

the

the contain to Mountain

periods 9,

Manganese

to is

manganese

copper,

of

lime and Mountains,

The

particularly

geologic

in

activities of

breccia

since dikes. for

Mountains small Precambrian

Quinlan from 000.

some would

intrusive mass part alluvial. rolling,

a

appear

formations

and Quinlan largely to tons of

geologic includes

Cimarron Coyote $6, and

manganese betterand

fault

sierra-type

monzonite careful marble,

and 11

rock the aplitic mining intrusive low,

except due

the activity

of

in

the

valley of A

also

of intrusions,

of

years detail mineralization, and The the The metamorphosed about igneous Cimarron in northern and It Reservation. high,

Mnor or

Coyote about production gold,

Laramide production

and

s conditions quartz and in no

amounted remnants

be

slopes

the

of and

war covers

the The area.

prong blocks

the

deposits sporadic

Indian

results in

partly of 1900’ small, range. 22

mining

major metal 000.

zones occur faulting. percent

economic

would

of

rugged pegmatitic intrusive.

features volcanics

geologic small

and ounces during

containing

The district

County.

early eastern minor north for pegmatitic

around favorable, $250, the

and fault 80 metals Papago

late schist Mountains

value to

ore of by

the the

sedimentary

economic precious

relatively only

record loci the

of Pima

been

DISTRICT metamorphosed a folded, to and replacement

silver. mainly study mining irregular Baboquivari steep

north-south no along the

total scattered and

Favorable structural under

averaging35 detached

silver, of value been aplitic not

tons

is the are

precious

before in and

and

within diorite. with of

lying from engulfed

ore and central The

has Cimarron of MINING

120 possible base

Mesozoic

Coyote

and gneiss, of have

made. both of

buried gold

lies

There area represent

the block been

Although

swarms

The of came

brecciated, limestone quartz somewhat district there total some ounces

lead. governmentbuyingprograms, production, tons estimated Laramide

base trict been sent in geochemical reveal

part

COYOTE a section

hill tains trict Mountains

tain east-west a ing septums cates, ably through have rized spotty, partly south )art .ndications tions, aulted fissuring cancis iary sphalerite, associated ond cinnabar,

per assays base-metal

zone of

the gest per ounce late oped. production

active deposits

brieflyin early

The northern to

sibilities warrented ful zones vation ploration

The the

of

The

volcanic be Roadside

type ton.

and and 1800’s limestone

that in to reexamination streaks, base

this foothills

Quinlan and silver

pyrometasomatic too 1900’s first

ran

By operation strongly

under copper

Tertiary

and

silver east-west in

in

Some

several which northern quartz,

that

metal with foothill spotty 1954 arenites

of 1922 as garnet,

rights.

to mineralization the and mining

and

thus although was the

economic

mine, to the

1920 highaso.79%mercuryand

and Laramide

Mountains.

to

and occurrences prices. the in

low

Roadside the 1951. oxidized sedimentary have

mineralization

mining mined northern

andweak

later

would the

in

rhyolitic calcite,

the hundred

fracture area

first

when 1955 area faults.

epidote, activity mine along

around

grade

of the

north

it Coyote

been

The

volcanic-sedimentary

The copper but

lies this require of whenpremium

which type

district

activity copper intrusive it

replacement

remains

mine.

and a

to manganese

the

not tons foothills. worked manganese was fillings volcanics occurs are

mine 1880. in

zone within

latter in and Mountains formations. be

and

also epidote

shipped district,

the

mineralization the

cut

reopened of of 23 of

special deposits

was There,

tefrahedrite, other

of ceased remained

Some

the inactive. Coyote may commercial district along

6 the is in in

area intermittently

complex

percent

at

in strongly Laramide cut deposits Minor

district accompany

Papago prices bodies due

material

lime underly and

the negotiations there early

the reportedly,

an would 6ounces and again in by There

Mountains

to

was

closed

Bonanza east-west as

irregular

strong foothills

The

molybdenite, a copper further silicates were cover.

faulting

are reports altered

in dissemina Indian along consists drop

were schwatzite,

value. probably without are appear at

and

and

only marmo

the of

still

from least from

in north

in some

the

Ter silver worked

A and copper devel

some Reser appear for north effect. weak

vol sec

fault

other and In

sug and care cop are

to pos fault of

any a the

the

the 14 ex at

be o:

to

by enc

the 50C

ex and in

of

ir

and

plu

ar

set

Cre

and deep, of 5, and

sul

sub

area been dis 1880’s4 lime faults

County.

to the

blocks. weak,

rite been

Tertiary north shallow

slope and

mining different 1890’s.

and of

in

size

up gentle

the

outcrops.

with

faulting,

rocks associated

have

mainly were monzonite

been the in and

Pima

metamorphic

fault

in

and have geologic and

orebodies

disseminated

general orebodies at

relatively

Permian monzonite

are

more ,has and

granodio

several

that in western

a

by the

closely small

normal

quartz

tilted

exposed of extending

oxidized

limited district

1880’s and

vanadates, located

depositionof

minerals

present

considerable cut

outlier quartz

and carbonates quartzite

and

intersections and locally,

The scattered

granite andquartzites, rocks occur the

often

the very

deformationtookplace

the

minerals tonnages. and some east-central

covers ore

ragged,

small,

in ranch is

and

rugged,

in

are

Empire replacement and in

relatively 0’s

Laramide

ore

sheer, small

spread

is copper eastern which

economically,

Canyon; and out monzonite

pediment

Laramide 187

metal Paleozoic the

24 intense

volcanic

large steep, an

zinc,

molybdates, The

exposed structural

dikes sizeable district were

found

and in

a wide

a

of

and

sulfide

late

range

and

erosion

large central

thrust, is

embayments. Precambrian

base has quartz

contains

carried local lead, was the

the of

of oxidized, Mountains, along

between with

zinc, Davidson the from

zones

and

and

slope

important,

of mining as

mineralization

DISTRICT After

metal

in

was contained deposits

Laramide

orebodies

Rita zone

Mountains, minor

Paleozoiclimestones

more

silver

minor

from erosion deeply lead, came this

consist andvolcanics, blocks most

jumble

draws

Laramide early

the few fissure

base

dikes. limestone

sedimentary folding; a up MINING veins

elevation and

a Empire mineralization.

but

Santa

by

eastward

Some as

The with

later mineralization Ruby

contact

name fault in

topography mineral Empire and deposits

the along

the

The fissures.

The

general

EMPIRE

The the of The the The

feet tending

The broad erosional mountains formations, taceous truded sediments tons doming;

produce Subsequent ting.

types. regular, stone pipes, and

with gentiferous ordinate In fides. although

Paleozoic copper tungsten extent.

found irregular stock.

covered of duction were of of Df listrict nining t920’s. ng t900’s, poradic tern, )ccurred nolybdenum

Empire

possibilities structural orebodies, of

mide able.

GREATERVILLE gets.

Laramide

placers Greater central to Mountains re to side the

a canyons,

cambrian

stones section

The

The gold, copper.

more broad molybdenum,

The

Greaterville,

The the

containing

off

general

shipped

total

from However, and

rocks

character

Greaterville

activity

increasing pediment

in

from

dominant through

district

8, Some Santa mining

in intense

pediment was

of and

in

the

the

334

gulches, estimated intrusives and About

granodiorite,

the narrow

similar

which

during

slope

that

the

and

of

the

from

an

Cretaceous early

Rita

tons wulfenite

MINING spatial about

Laramide

a in

eastern

some

represents 1972

on

mineralization.

large early

1940’s. plain

and

district a of area

556

rock a

the

is

appreciably

Mountains

a World

and

careful

the

in of

thriving 1920’s,

the a

mining

arroyas,

to

206,

more

and

rugged,

would

tons minor

district. might DISTRICT

of this

lead, small

porphyry

were

settler relationship

above

district.

formations alluvial

those

mineralization,

part.

the

recorded

concentrates

400

War

would Since

schists, intrusive

conglomerates

of

area,

gentle

geochemical

and district

reveal amount

an

372

being area

settlement

Santa amounts

picked scale

25 ounces

of

steep, found and I. in

during Paleozoic outer

increasing

plain.

deposit be

The 1950

The southeastern

tons

the

with

but

Other

is

washes

production

and

Cruz

worked.

of further some

continued

trend to

is

to

ore maj may total

area covered

westward

of

dissected zone

of

the there

of

World

gneiss

the

located

the over were

do

Valley. silver,

the at

zinc,

small or

examination

containing

tungsten

$1,

still

and

value district and

rocks

extending not suggests

crest

on again

the

exploration

regional

zinc

has

structural

34,

The

17$,

War

produced

bypost-Lara

of

the

gave appear in

Pima

in arkosic and

exist time

replacement in

by

the

slope 744 000 production

To of

been

the

undoubtedly on in

the

Santa 000. north the

I, numerous ore

his the 172 are

Empire

the the

the that

76

the

tons ounces

western County.

but out

drop— strong

favor

early

north—

of

little

drops

pro name

tons late sand tons also pat

east, side

Pre west tar for

Rita

gold

the the into

the

of a

th

an in

ac

of

and

tool

nu

Sub

gold

out Cre rel

lode base

dis

some

along

year con other

mid—

some

Durin

prior

forma

Creta

the

the then

district eastern

and returns.

porphyr3 piedmoni

Tertiary

intrusive

hundred

and

Free during years

numerous small

per intrusion enriched, has and the

of

and were

sometimes

placers andwas

the

the

pushed

the

faulting,

formations,

surface showed

the

few

the

breaks. the porphyry

the

The Since

in gold

a

In

away are barite

elements

Yuba

until

gold recorded

in

in

from

rhyolite

1870’s of

However,

1970)

some along

with

erosion

district

economic

the extensive amounts.

latite Cretaceous

the alteration

faulting

by

folding,

was

1923. in

veins depression production

gulches.

Numerous,

the

east

sedimentation. veins of

the

eroded the

planes.

the mining

the

faulting. weak

metallic Cretaceous

structural exceeded

products

trend. as

the from

the ounces

of

the

in

thrust

strong

found quartz

deposits

about

carbonates,

production

and

(Drewes,

variable

from quartz

fault placer were

to

rocks. the

lode

250

intrusion

of

angle many to

most

early

but never

in

by

introduced

and

stronger production 26 Greaterville to

during

but

were

gold

occur

discovery

Major

the

up

produced

between small for

as

oxidation

found

intrusive

Cretaceous produced from

period,

high

has

the 100 mineral

zone derived

Precambrianformations

few preexisting

invaded

and The time

weak sporadic

to sampling

guided

of a ore

placer and

been

the values

placer dikes. the

their in

the

intrusions

intrusion

one veinlets

furnishing

and

increase of

gold-bearing some

erosion

general

along mining

the

terraces

to

1874. recorded

been

prior deposits and the

tear and at

orogenic anomalies

have

attention

predominates

over

of

silver

silver prospected

on

the

in

be

by

small

deposits some

era

mountains, Lode

share

have quartz produced

plugs to strong and generally

from spotty,

and

outcrops and beds found

to

deformation,

Most

with

gravel strong Geochemical the although

Laramide

Quartz

and as

occurred present

sulfides lode irregular,

and formation.

with mines

diverted of

Laramide major gold

enriched been

1930’s.

The

northwest-trending

1886

The

Mesozoic the were

large taceous companied place appear

further dikes sequent

placer gluches irregular

mineralization tions plugs. metal present, and crops. atively

a aligned

deposits The oxidized

has edge ceous merous, covered 1874 rich small 1920’s.

to continued small,

tinued the an area GROWLER posits rnomalies 3tudied vould )er, , reaterville was ithus brict ibout 3, )lacer western

ons which the and hrough ranch.

Tertiary ite area ozoic ing formations trict

quartzite Tertiary structural

ozoic ered showings,

unces

rivate

The

000

The

The

Some

early

000

and

south

is

in

chances

per

one

and

is

has

at

$650, has

fault

tons be

total

Greaterville

have

intrusive. or

covered

shown

Growler ounces granite,

of

the

The

1972,

in

companies. not

limestone,

the

not

Pima

of

scattered

prospector

year MINING 16

uncovered

sediments

basaltic lode

been silver.

and some

are

exist

of

havebeenprospected early

and along

distrubance

000,

exposed.

been the Growler

estimated

tons

south

less

for

district

there

lode

as

limestone,

operations. capped

of

as

County.

reported. fracture

the

few

mining

but

DISTRICT detail

alarge

Cretaceous mostly a

than of

discovered. Some any

The

19

silver,

well

volcanic

ore end result

has

district mineralization,

older

metamorphosed

zinc.

OOt

scattered watering

as

and

Some

in

Mountains

No

major

through

about total

by

containing

of by

been

s gold

and

yet

as

the

economic

can

volcanics. prior district

detail It

zones

supported

a

the

of

possibly

the The 170

formations.

was

being mineralization

value

no

area.

thick flows,

recorded

29,

has

no

has

be

regional

reconnaissance

27

sediments

Growler

places

U.

outcrops

tons

1972

It

amount to large

recorded

geologic

in

named

assumed

000

been

been

and

would

and intermittent.

lies

of

S.

1900.

about

various

deposit

series

Bates

agglomerates,

of

ounces

associated

Although

a would

aliproduction

mostly Geological

the

Mesozoic

economic

developed in

extracted

carefully

mineralized

small

lead,

in

production

of

after

appear

Mountains

Erosion

of 390

mapping

this

Bates output

the and from

of

placer

Well,

are

Paleozoic

formations.

of

and

amount

20 ounces

oxidized

Quaternary

community

John

no gold

desert

mapping, Growler

not

volcanics

with

the

Mountains geochemical that

rocks,

tons

mineral

from

strong mapped from

From

in

inPaleozoic

Survey

in production

favorable.

and

of

from

would jumble

the in Growler,

and

zone

to

the

the

the

of

of

the

country

quartz

either

south

weath

copper

6,

some

fault gold, pass,

Mes

1961 Pass cop—

Mes

Some

dis— pass tuffs

such

dis

and and 000

de

the

and

and

and

and

be

to

of in

to

as is

by

the

the

the

dis

now

part

Pipe

been

cap

to

ridge

min

to

offers west-

metal

Lara

in metal-

major

mined

strong

occurs stories

the

in

Onlyone it calcite,

numer

exhibits

of

possible

of

the

enriched

erosional

in

consider

faulting

around

as

covered

Organ only

the

The

of topography,

been

having

deterrent a possibilities

any

zones

western

flux.

andesite

tons

formations

by

itself

referred

a

the low,

outcrops the

precious

held

various

has and

quartz,

formations

the

and

small,

thinly

of

few

shape

outcrops

decomposed

and Mountains

a

in in

are

complex

still

been flux

o

subdued

molybdenite,

fissure

the

disclose

gunsight

gneiss

basaltic smelter surface.

within

Aj

and

older

become

a

to

intrusive

than base

lies

particularly has

and are

and

evidenced

Paleozoic

intrusive.

narrow,

area

cluster

recentyears

There

for

sometimes

the

still the surface

intrusive

Strong

pediment the

along as

produced

small

In of

smelter

the of

note

an

from

more

there

mine

the

might

This

the

Tertiary

position

and spotty, in

28

of

claims

broken

district

rock

has invaded

end

in

usually

might

of

tungsten

weathered

shipped

some Its

is of silica

a

district, and

found

covering

hill.

The

and

district.

covers stringers

is

zones south, that

for

for

north

local

produced study Gunsight

formations.

Reservation. area silver

Mining

exposures zones.

limits

weak

the

originated;

Monument and suspected

silver

predominates

the DISTRICT

and

an oxidation

extensive

mining

district

rock

hasbeen The

with

and

in rock

the

at

deposits.

except

quartz County.

of

and

an

Indian

lensing,

shear

Gunsight

earlier

careful

district, north

name and fragments

of

also

native veins

gold

western

Growler, Quartz

a

MINING of

Arizona.

part

Hills

away

generally

zones.

the

National

Pima

the

of

Growler

exploration.

Gunsight

the main

basement

granitic

strong

Papago

To from and

producer

are

pegmatitic-like

obscures apparent

most

Meyer

barite

quartz economic amount

ore.

how the

The

The

the irregular,

The

Some,

mine, southern the GUNSIGHT limestone lie trict

Cactus for

future

the central

Gunsight

of on

on made

hills stripped representing alluvium.

mide

east.

remnants

ping both many in and intrusive. mineralization,

ous

eralized

weathering able pockets metal

from The district was first prospected in the late 1860’s and early 1870’s, soon after the first activity at nearby Ajo. The main production of metallic ores came in the early 1880’s when the Gunsight mine yielded high grade silver ore from near surface workings. Since that time, up through 1965, production from several small operations has been limited and intermittent, mainly a small tonnage of high grade gold-silver ore with minor copper and lead, and mi nor scheelite. The total metal production from the Guns ight district from estimated and recorded records would amount to some 16, 000 tons of ore containing about 100,600 ounces of sil ver, 400 ounces of gold, 780 tons of lead, and minor cop per and zinc. Probably not more than four tons of scheelite ore has been shipped. In recent years considerable silica flux has been mined and shipped from surface operations. The total value of the metal production would be close to $176, 000. No detail geologic study of the Gunsight district is on public record and except for the Gunsight mine, little de velopment work has been done except for the near surface prospecting for precious metals along shear zones in the granitic intrusive. A large part of the district is covered by late volcanics and alluvium which obscures any additional mineralized areas but the geologic factors are notunfavor able. Careful geology study and geochemical investigations might reveal possible loci for economic deposits. Explora tion activities would require permission of the Papago Indian authorities.

HELVETIAANDROSEMONTMININGDISTRICTS The Helvetia and Rosemont mining districts lie at the northern end of the Santa Rita Mountains to the southeast of Tucson, Pima County. In general, the Helvetia district, named by a local Swiss miner after Ms homeland, covers the north end and northwestern slope of the range. The Rosemont district, named after an early day miner named Rose, lies on the eastern slope of the range to the east and southeast of the main Helvetia mining area. The boundary between the two districts can not be easily defined geograph ically or geologically and thus they are treated together. The northern section of the Santa Rita range is moderately rugged and serrated with a crest over 6, 000 feet in elevation.

29 The broken slope to the west is somewhat steeper than the one to the east and the slopes break into numerous separate foothills resting on an irregular pediment covered in part by alluvial fans, terraces, and alluvial aprons. The dissect ing dry gulches radiate out to the north, east, and west. The geologic make-up of the districts is extremely com plex in types of formations and structures as detailed in the quadrangle mapping of Drewes and Finnel of the U. S. Geo logical Survey and the reports by Drewes. Precambrian schist and granodiorite are unconformably overlain by a thick sequence of Paleozoic marine deposits including quartzite, limestone, shale, and sandstone. Mesozoic vol canics and sediments unconformably overlie the Paleozoic sequence. Strong deformation by folding and faulting took place duringthe middle to late Mesozoic time and mat least two periods during the Laramide orogeny. Strong thrusting in two divergent directions and igneous intrusions accom panied the deformation. Normal faulting continued almost upto recent time. Strong erosionhas carved out the present geologic setting. The majority of the orebodies of the two districts are ol the pyrometasomatic or contact metamorphic type in lime silicated Paleozoic limestones along or close to the contac with Late Laramide quartz latite porphyry intrusions or along fault zones that furnished channeiways for mineral izing solutions from those intrusions. The orebodies thai have been mined were generally small and highly irregular in outline, sometimes in the form of pipes along fault or fracture intersections and other times as flat-lying mantos, Ore mineralization often is marked only by assay walls, Copper is the dominant metal but some lead and zinc is usu ally present. Molybdenum and tungsten are more erratic but locally may be important. Silver values are often higl but gold values are uniformly low. Most of these replace ment deposits were oxidized to various depths. At the norti: and south ends of the districts and in the Precambrian in trusive, smaller and weaker base metal mineralization ha been prospected in veins and replacement bodies but min ing has been limited. This latter mineralization is ofter associated with quartz or quartz-calcite veins near thrusi planes that served as channelways for mineralizing solu tions. Some of the intrusive plugs contain disseminatec copper mineralization that will be mined as porphyry cop

30 per

was roofing ried Relatively

ed

Again that closed

Co.

duction and tricts production

1904. total 347, molybdenum 1960,

erable 17,430 1972 sten phyry-type and be and districts eralized that

Quijotoa

LAS has gold HORSESHOE

of

The

The

The

in

The

The

found deposits.

the

started

discovered,

time,

GUIJAS have

crushed for

1957-1959.

000

passes value

been placer

concentrates

the

would

showed

Except with

total mineralization

after

Helvetia

limestone down Horseshoe

tons stone Las

from lime

Las

ounces

early zone,

mining been

and

in

the small

of

included

from

MINING

the

estimated

BASIN

operations

Guijas

area closing

be

the copper through

of

Guijas

concentrates

production

stone Partly

the

about

continuous

the

Rosemont and

for

additional

major mapped

part

1880’s

copper, some —

mining of

favorable

the

and

Since

district. mining

districts.

on MINING

a

decorative

Rosemont and

DISTRICT

for came

Basin

mining

$7, silver, few

of

and

mineralization

Mountains, marmolized

the Helvetia claims

down,

these

and

output

426, in

marble

but

roofing

a

780,

andprospected then

and

and

years

Copper

680

from east

but

general and the

DISTRICT activities described

base

recorded

mining

and the

000

district,

districts.

structural,

and

smelting mining continued

000.

irregular

there

staked,

tons

Helvetia

districts during marble

31

side

purposes. —

drop the

have a in

metal

gravel

tons

Rosemont

Co.

1,

few

Some

has

northwest

the

limestone

of

Helvetia

district,

580 of

has

until

activity base

in

in

been

and

at

of as 1916-1919,

tons

has

operations the zinc,

early

has

been

deposits —

production production

and

metal

been

13 are

ounces

this

the in

ore

early

Rosemont intrusive,

the

Quijotoa

and

of the

been

been

tons produced

some

decorative

districts

well district.

northwestern

included

261

1930’s, containing striking

Helvetia

high

index

very

has

a was

precious

prices

1890’s.

as

of

of small,

quarried are

found

tons

mineralized

detail.

were

been

grade

the

1944-1947,

revived

high

Mountains,

up little

gold

into

under

districts

and

likely

for

the

Consid through

through

system, of

Copper in

with

187

in

start

quar

About

metal stone.

grade

1901. about local,

tung

lead, for

pro

Por min 1883

lime

dis

both

0’s.

for

end

the

the

in

to

a A

in in

s—

the

the

the

and

the ore

ore

ap

Pipe

sil

bor

Sec. con dis

been

cop

rocks

which

value as

pro

of

a

of

recent

consist

granite

Sonoyta of

all,

present

veins

the amounts

base

andesitic enriched along

In

from relatively Most

sporadic,

evident

scattered,

metamor

Cen.

border.

and Organ

in

and tons

total

first

of the to not

early

tons

district

is

N.

Mexican rocks

and

lies

the

II

token

In

mineralization as

mineralization

The volcanics Manyhave

fissure

were

spotty

102

These

were

the

Mesozoic

1,300

The extent.

Blanco

a 53-1954. silicic

fault

than

metamorphic activity

R5W,

Mexican pockets

and

within that

19 theMghvalue

Most,

limited

along production

Mountains

lead.

by

shearing

numerous,

copper

from

the

some

to

in silver,

basaltic

great

possibly the

of

Montezuma

lies

enriched

district

County. more

peaks.

Puerto

to

strong

very intrusive.

extracted.

and of

index.

into

due the

and

outcrop.

the

Tertiary

A occurs

any

gneiss

the

tons

Blanco

and

and

in

along

of invaded district.

by Scattered been

8 reported 32

to Pima

volcanics

exploration

this

superficial

been

in

and

shipped. district

amount

in

ounces

produced

away. the has

Mexicans,

period and

plug and

disseminated

granitic

secondary,

ridges

ore

have some

Puerto

fracturing

$200,000

of

northwestward

100 local,

dissected

and

DISTRICT covered

might

have

gold mining

possibly

of

intrusion

the

phyllite,

the

developed

eroded district

from

activity 164, may

part been

Monument of over

weakly

mineralization in

few

occurrences some

of

formations.

ragged

and

intrusive

southwestern

Quaternary-Tertiary

metamorphics 1915-1918

mineralization

curving

estimated

MINING

has

Laramide

but

district

of

and were

strongly

amount about

diorite age

schist, came

some and a the

probably

silver

edge

metal

mining

surface.

mining

largely

ounces

or

copper

to

National

in

in

bySpaniards

northern

total Montezuma

mineral

known

there

are havebeen

suchasatCopperMountain(T15S,

was

the

and

126

ranges,

now Mesozoic

1700’s

and

Mesozoic

sediments

the

where

ore,

quartz

The

The

The

The

Cactus

Arivaca MONTEZUMA Mountains steep-walled, der, Laramide

low of

in to are phosed area siderable volcanics

northern

the of the

prospected precious near

produced gold century,

pected late occurs mainly 36) trict, containing

years Montezuma

per,

would ver pears to be spotty and except for Copper Mountain appears to be associated with the Mesozoic intrusions rather than the Laramide period of mineralization. However, no detail geologic or mineralogic examination of the district is avail able and a careful study needs to be made before the ore possibilities of the district can be determined.

OLDBALDYMININGDISTRICT The Old Baldy mining district, a relatively small area of which only the northern part is in Pima County, lies to the west of the Greaterville district on a west side prong of the Santa Rita Mountains. It was named after Old Baldy Peak to the south in Santa Cruz County. The main topo graphic features of the area are steep drainage canyons separated by rugged, sharp-sloped ridges. The surface rocks consist of folded and faulted Triassic rhyolite and latite flows, and ftffs, and Cretaceous sediments that have been invaded by a large pluton of Laramide granodiorite and quartz monzonite. Tertiary rhyolite dikes and quartz veins cut the volcanics and intrusive. Most of the district lies within a large fault block. Spotty and generally weak, base metal mineralization with some local molybdenite occurs along quartz-filled fis sures and in quartz veins. Although prospected and super ficially developed as early as the 1880’s, only one mine has produced more than token amounts of ore. The total estima ted and recorded production of the Pima County section of the district would not be more than a few hundred tons of selected copper-silver ore, valued at about $8, 000. The Old Baldy district section in Pima County has been well prospected and the possibilities for economic ore de posits do not appear promising.

ORACLE MiNING DISTRICT The Oracle mining district, also referred to as the Control, Old Hat, or Santa Catalina district, lies on the north slope of the Catalina Mountains to the northeast of Tucson. Only the southern part of the district is in Pima County. The origin of the names came from names of mines, towns, or the mountains. The Old Hat mine was later called the Stratton. The Santa Catalina Mountains are a massive, high, rag ged, sierra-type range with steep flanks and numerous deep

33 canyons and sharp ridges. Mount Lemmon rises to over 9, 000 feet and other peaks are over 8, 000 feet in elevation. The north and east flanks are less precipitous than those to the west and south. The main mass of the range consists of granitic and gneissic rock masses of Precambrian and Laramide age. In the district, the Precambrian intrusive, Late Precam brianquartzite and diabase, Paleozoic quartzites and lime- stones, and Cretaceous sediments and volcanics were in vaded during the Laramide orogeny by a large composite pluton of granitic to quartz dioritic intrusive leaving folded and faulted, engulfed blocks and strips of the earlier forma tions and causing wide spread metamorphism. The result ing jumble is geologically complex and as yet not fully un derstood. The metalliferous mineralization in the Pima County sec tion of the district occurs mainly in and around the Marble Peak area where strong skarn or tactite replacements have developed in the pyrometamorphosed Paleozoic limestones, along with veiiilets and disseminations of chalcopyrite, bor nite, and locally scheelite. Some spotty galena and sphal erite also occurs, principally around the fringe of the more intense copper zone. Lamprophyre, alaskite and quartz dikes and veins cut both the intrusive and metamorphosed formations and sometimes are closely associated with the sulfide mineralization. Molybdenite occurs mainly in the quartz veins and dikes. The continuity of the copper min eralization has not been established but appears to be lo calized by the intrusive contact, structural faults and frac tures, and by the selective replacement of favorable lime stone beds. The Abrigo Formation limestone seems to be especially receptive to skarn development and copper min eralization. Oxidation and enrichment are very minor since erosion has kept pace with any weathering action. The mineralization in the Marble Peak area was dis covered in the early 1900’s but the difficult terrain and general inaccessibility discouraged any maj or mining activ ity. The Phelps Dodge Copper Co. did considerable devel ment and exploration work in the Marble Peak area around 1910 but there was no production prior to 1937. Jnthatyear, mining was carried out in the Gee sman and Daily claim groups, a mill to concentrate the ore was built, and the old timber road to the property improved. Irregular production

34 ploration Dontinued mines of been prices sporadic be Canyon sten AlderCanyon 3, ounces posit. about possibilities tion

the 1972, flank 118,000

elongated PAPAGO ward should even area. area name

lead, faulted, strips stone, Mesozoic in Sierrita

Laramide

The

060

placer The

The Geologically,

Spotty

the

well

district.

of

pediment mining of

of conducting

and

3

occurs

of has

comes

Papago total

tons quadrangle

Marble

The

of

district.

prevailed. indicate From

the

of and

(SIERRITA) to

tons

the

ounces

and

output,

the

mineralized program

Mountains.

argentiferous

partly

upto

northward gold

the placer

granitic

main ridges been

granitic

western

Sierrita

of

dolomite;

base

Pima

was

thrusted of

from

are

in the

and

or

east.

and

is

copper,

Peak

1950

W03

of

mountain metamorphosed

fracture some

the

mainly

Sierrita

an

carried the

information good

reported

and gold

about

MINING

and

valley

in

mapping section silver,

the

intrusive;

Since

pluton

Mountains

continuity

intense

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26

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37

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38

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a the southernmost elevation in the chain. The entire group lies within the Papago Indian Reservation. The topographic features and geology varies between the areas and each is separated from the neighbors by low-lying passes or pediments. The Brownell Mountains consist of a cluster of erosional hills and mountains that are residual remnants of a higher, block-faulted surface. The rocks arc Laramide clastic sediments, andesitic to rhyolitic volcan ics, and granitic intrusives. A few Tertiary intermediate to mafic plugs and dikes cut the older formations. To the north and east, the mountain breaks off into rolling topo graphy cut on an alluvial-covered pediment. To the west, a wide drainage valley, cut by numerous washes, in Tertiary clastic sediments, separates the Brownell Mountains from the Sierra Blanca range. The latter is an oval group of rag ged peaks with steep irregular slopes cut in light-colored metamorphic schist and gneiss, probably metamorphosed most recently in Laramide time. On the west side there is a small fault block containing Paleozoic quartzite and lime stone. To the south, across a relatively narrow pass, is the large typical sierra-type Quijotoa Mountains with a series of peaks and ragged flanks cut by dry washes. The main mass is a fault block of Laramide granitic to quartz dioritic intrusive. Fault blocks of Tertiary siicic volcanics are exposed to the northeast and Tertiary to Quaternary elastic sediments cover the pediment surface on both sides. At the south end of the range, Ben Nevis Mountain stands as a high, narrow, irregular ridge with almost vertical walls. It is an uplifted and much faulted block of intercalated Cretaceous sediments andvolcanics, and Tertiary silicic and andesitic volcanics. South Mountain, at the end of the mountain chain, is an oval, steep-walled ridge of purplish-red Tertiary an desite flows with strong horizontal parting and columnar jointing. Throughout the Quijotoa district there are numerous, scattered, and small deposits of base and precious metals, barite, and minor, rare earth minerals. Locally, high grade and enriched pockets of free gold and silver chlorides have been found, mostly in or adjacent to oxidized and mineral ized faults or fracture zones. Quartz, calcite, hematite, manganese oxides, and local barite and fluorite are the gangue minerals. Traces of uranium also have been detect 40

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the

sediments

pyrometamorphosed

production

part

The

topography

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and the

dissected

and

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foothill

ounces

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in and

slope

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replacement

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some

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logic

production base

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the intrusions. mainly volcanics

underlie ROSKRUGE

veyor

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vetia

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metals

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100

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indications

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43

tons the

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volcanics

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18

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mineralization

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exposures.

official

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district mineralized

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price,

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of

silver

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1952

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prospected

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limestone;

1916

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1902

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isolated

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sediments

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broken

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company

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46

metal

from

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in

oxide

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mining

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tons

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metals

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mine

Silver

silver,

24

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covered

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age

worked

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sediments

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value

mining

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formations.

DISTRICT

southward

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million

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acter

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fromthePima

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2,

structural,

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district

and

780

000

deserve

with

000

that

the

district

25,

129,

be

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tons

oxidized,

to

canyons.

ounces

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border

tons

000

some

any

the

about

600

in

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of

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more

association

tons

of

new,

appears

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south

intrusive,

section

volcanics ounces

the

lead,

along

ore

of

$12,

and

flank

section

copper

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of

silver

care

char

large

sedi

from

con

less

only

000.

the

490

ore

in

the

of

is

to of

(51 Growler tons)

12 2 2 2

Greaterville 2

39 343 32 1,866 28,838 650

Empire

34

344 16,671 515 744 2,064 1,178

Coyote

tons) (712

140 21 — 12 31

Cimarron (118

tons)

21 2 80 5 6

Cerro

Colorado

5

33 63 1 463 3,767 362

Catalina 5

415 1 22 — 107

Canada del Oro

110

— — 436 —

Cababi

6

184 364 3 3,450 1,021 245

Baboquivari

57 244

24 ibs) (316 13,850 1,735 603

Arivaca

9

72 230 17 5,620 455 210

Amole

34

529 670 375 1,010 289 272

Ajo 350,

015

5,659,953

1,548,253 — 918 189, 1,524,723 —

Agua Dulce (3

tons)

(230 ibs)

2 (9 ozs) — ($86)

(1,000’s)

(1, (1, 000’s) (1,000’s) 0005) (100’s) (1, 000’s)

Ore Copper Lead Zinc Gold Silver

Value

DISTRICT MINIISIG

Short Tons Pounds Pounds Ounces Pounds Ounces Total

(

) Including estimates years for data not available

THROUGH 1972

PRODUCTION SUMMARY OF BASE PRECIOUS AND METALS

TABLE 1 Gunsight 16 32 1, 552 (229 ibs) 397 1, 006 176 Helvetia—Rosemont 426 34,860 521 1,360 1,581 3,469 7,776 Montezuma i 205 16 126 1,641 213 Old Baidy (206 tons) 37 2 10 8

Oracle 136 6,117 188 50 387 1,11 861

Papago 5 52 790 2 1,100 301 104

Pima 369, 707 4, 119, 854 85, 195 232, 953 53,720 311, 936 1,884,887

Quijotoa 16 132 58 11,616 2,325 509

Redington (91 tons) 12 1 2 Rincon (193 tons) 14 36 112 5 8 Roskruge (377 tons) 5 5 23 105 8 Santa Rosa (206 tons) 18 7 60 13 8

Silver Bell 61, 200 1, 008, 839 1, 804 48, 087 1,490 52, 942 367, 067

Waterman 25 1,502 1, 563 978 106 1,296 655

Whetstone 2 40 — 10 12 Miscellaneous 2 175 143 4 170 1,032 61

Total 781, 705 10, 833,880 110, 245 284,377 1,673,334 578, 412 3,791, 197 (5,416,940 (55,122 (142,189 tons) tons) tons)

osemont

Bell

Hat

Quijotoa

Papago

Helvetia-Rosemont

Amole

Quijotoa Baboquivari Amole

Cababi

Quijotoa

Baboquivari

Arivaca

Papago

Silver

Greaterville

Baboquivari Pima Amole

Greaterville

Pirna

Amole

Pima Papago

Amole

Arivaca

Helvetia-R Old

Helvetia-Rosemont Arivaca

Empire

Greaterville

Helvetia-Rosemont

Pima

Amole

Pima

Baboquivari Arivaca

Cababi

Gunsight Arivaca

Ajo

Papago Ajo

Arivaca

Waterman

DISTRICT

NAMES

mine

area)

Queen

2

Pascola

mines)

mine

group)

mine

mine)

placers

and

PROPERTY

mine)

mine)

group)

mine)

Papago

50

Eve

mine)

mine

gold

Annefte

May

Ballas

TABLE

mine)

and

mine)

Creek

mine)

mine

Comstock

and

Ivy

Indiana-Arizona Minnie

(see

Years

Ash

Dike Bullion

MINING Canyon

mine)

(see

Verde

(see

(see

(see

mine

mine

Eclipse

New

Old

(see

Conglomerate

mine

Gold

California

Leatherwood Pellegrin

OF

lode

Olivefte

Palo

mine

Jaeger

mine

quarry

mine

(see

(see

group

(see

group

(see

Pascola

mine

placers)

(see

(see

(see

(see

group

(see

mine

mines

placers

(see

3

area

placer

mine

mine

mine

group

(see

mine

and

mine

mine

mine

mine

group

gold

mine mine

mine

mine

mine

INDEX

Thcson

mine

mine

Marble

Comstock Consolidated Molybdenum No.

Buttes

King

gold mine

gold

mine

mine

mine

group

Silver-Lead

mine

mine

claims Axe

mine

group

mine

mine

mine

Waterman

Lomand

Hive

Creek

mine

Cornella

Consolidated Gunsight

group)

mines)

group) Canyon

Battle Ben

Banner Bee

Ballas

Banes

Ballas

Badger

Baboquivari Backbone

Backbone

Atlas

Arizona Ash

Arizona Arrastra

Arizona

Arizona

Arizona Arizona

Arizona

Arivaca

Arivaca

Aquinaldo

Apache

Andrada Annette

Andrade

Anderson

Andrada

Amole

American

Amargosa

Alpha

Allison Amado

Albatross

Ajo Ajo Akron

Ajo

Ajax

Aguajito

Abble NAME

Cerro

Chance Century-Chief Carlo

Chapman Cardigan Carbonate

Carboloy

Cara California

Camden

Cababi

Cahuabi Burro

By Bullion

C. Bulldozer

Buena

Buckhorn

Brownell Broad

Boston

Border

Bonanza

Bonanza Bluff

Blue

Black

Blow Black

Black

Black

Black

Black

Black

Black

Black

Black Black

Black

NAME

Black Big Berkley

Big Big Bernice

Beuhman

Table

group)

Chance

&

Juanita

Johnny

Banana

Vaca

Jay-Good

H.

mine

Out

and

Colorado

Princess Jack

Prince

mine

Vista

Gold Diamond

Horse Dragon

Horse

Diamond

Hawk Diamond

Bess

Top

Bear

2,

or

mine

Gulch

Bar

mine

mine mine

mine

mine

Park

mine

mine

mine

mine

mine

mine

mine

Cont.

mine

Eclipse,

mine

Cobabi

mine

group

mine

mine

mine

mine

group

mine

mine

and

mine

(see

mine mine

mine

mine

mine group

(see

mine

shaft

(see

mine

(see

(see

group

mine

group

mine

group

(see

group

Friday

mine

(see

mine

group

group

mine

Little

(see

Indiana-Arizona

group

mine

Allison

group

group group

(see

mines

group

Greatervifie

Prosperity Picacho

(see

(see

Arivaca

group

(see

New

(see

(see

(see

(see

Indiana-Arizona

Johnny

(see

Jean

mines

(see

Copper

C.

Isabel

York

mine)

Brownell

Cimarron

Vindicator

Montana

&

Baboquivari

mine)

F

Picacho

King

H.

mines

mine

group)

mine)

World

placer

mine)

mine

mine)

mine

mine)

mine)

group)

51

mine

mine)

mine

mine)

group)

mine

deposits)

group)

mine)

group)

group)

Arivaca Waterman

Quijotoa

Baboquivari

Cerro

Ajo

Waterman

Arivaca

Quijotoa

Empire

Quijotoa

Pima Cababi

Cababi

Waterman

Gunsight Arivaca

Helvetia-Rosemont Greaterville

Arivaca

Quijotoa Greaterville

Helveda-Rosemont Amole

Old

Helvetia-Rosemont Coyote

Quijotoa

Helvetia-Rosemont Cerro

Helvetia-Rosemont

Chnarron

Arivaca

Helvetia-Rosemont Coyote Baboquivari

Helvetia—Rosemont

Empire

Gunsight

Cimarron Baboquivari

Coyote Baboquivari

Papago

Baboquivari

Montezuma

Helvetia-Rosemont Baboquivari

DISTRICT

Hat

Colorado

Colorado

Mts. Mts.

Colorado

Hat

Cababi

Pima

Helvetia-Rosemon

Helvetia-Rosemon Cababi

Pima

Old

Pima

Pima Arivaca

Helvetia-Rosemon

Quijotoa

Pima

Amole Empire

Whetstone

Amole

Helvetia-Rosemont

Growler

Pima

Helveth-Rosemont

Pima

Cababi Amole

Pima

Greaterville

Arivaca

Cababi

Arivaca

Helvetia-Rosemont Greaterville

Cababi

Helvetia-Rosemont Amole

Greaterville

Cerro

Helvetia-Rosemont

Helvetia-Rosemont Montezuma

Helvetia-Rosemont

Greaterville

Empire

DISTRICT

and

Copper

mine)

deposits)

mine)

mine

deposits)

group)

Annette

group)

and

(see

Chicago,

H.

Crusader

Chicago,

52

and

&

placer

group)

Shield

mine mine)

Bell

mine

and

placer

C.

groups

mine) (Cottontail)

Top

Copper,

mine

mine)

Copper,

Silver

(see

Olivette

2

Copper

mines

H.

Tip

Growler

group

mine

&

&

Conejo

(see

Columbia

1

Esperanza

Greaterville group)

(see

Peach

(see

Oregon

Cunguian

mine (see

(see

group

C.

Oregon

Greaterville

mine

mine

Tiger

(see

(see

mines)

(see

group

(see

mine

group

(see

mine

group

Nos.

(see

mine

mine

mine

(see

Crusader mine

mine

group

mine

(see

(see

mine

(see mine

group

mine

prospect

mine and

mine

mine

mine

group

mines)

mine

mine

mine

mine

and

mine

mine

mine

mine

group

Clark Gulch

mine

mine

mine

Cont.

Squaw

Mountain Plate World

King Hole

mine Hill King

King

Glance

mine

Butte

Duke

Bell

mine

Alex

claims

King

(Cottontail)

Bros.

Gulch

Coconino

2,

Cianny

mine

Esperanza mines)

mines)

King)

group)

and

Coconino

Crusader

Crown

Crown

Coyote

Coyote

Cowboy

Cottontail

Costello

Corregedor

Corda

Copper

Copper

Copper Copper

Copper

Copper

Copper

Copper Copper

Copper

Copper

Copper

Copper

Cooncan

Contact Contention

Conglomerate

Conejo

Comstock

Comobabi

Columbia

Columbia

Columbia

Colorado

Colorado

Clum Coconino

Cimarron

Christenson-Lane

Chief Chispa

Chicago

Table NAME El Elsie Elgin E edna East )ogtown )aisy ushing uprite ube TAME Empire Emmett El Elgin Eldon Edwards eclipse Easter Dutchess )urzano Jimple )esert )an )ally urtis unquian Empire Emperor Eclipse )aylight-Narragansett Enzenberg ‘able Esperanza Esperanza Exile Esperanza

Fairview Falls Faro Forty—nine Franklin Franklin,

Geesman Fresnel

Fries

isenhauer

W

Marion

placers)

Tiro mines) Tiro

mine

T

Pima

iron

J.

mine

2,

mine mine mine

mine Bank

mine mine

claim

mine mine

group

mine Lode

mine

mine

mine mine

mine

mine mine open

Gulch placer

Cont.

mine

gulch and

mine

mine mine

mine

(see group and mine

mine

mine

mine

mine CusMng,

mine mine mine

and group

group (see (see

group

(see (see

(49)

mine

Elgin group

group

group

pit (see

group

(see (see

Dutchess

(see

(see

Elgin

gold

(see (see

(see

West (see

group group)

(see

mine Emmett

Prosperity

(see Eclipse King-Exile

(see group group

(see Alpha

(see

Carlo Franklin,

mine

Lilly,

Arizona

placer

Greaterville Allison

Emperor

Morgan

mine

and

South

Esperanza

Mission

Silver

mine

high

Palo

(see

mines

mine)

Marion

and

mine

and

Saguaro,

group)

(see

San

mine)

Card No.

mine

Good

mine Verde

group

Bell

mine

Eclipse Cushing,

Elgth

and

mine)

group)

Xavier

Las

3

open

mine placer

Dutchess

mine)

mine)

group)

Enough

group)

mine)

group)

mine)

mine)

and

Guias

mines)

53

pit

mine group

and

Empire

deposits)

mines)

mine)

mines)

gold

group)

DISThICT

Quijotoa Cababi

Helvetia-Rosemont Pima Helvetla-Rose Old Pima Helvetia-Rose

Cababi Helvetia-Ro Arivaca Helvetia—Rosemont Pima Arivaca Cababi Helvetia-Rosemont Waterman Pima Arivaca

Baboquivari Helvetia—R

Silver Pima Silver Baboquivari Helvetia-Rosemont Pima Helvetia-Rosemont

Greaterville Baboquivari Cababi Gunsight Arivaca Greaterville

Pima Pima

Empire Helvetia-Rosemont Cababi Helvetia—R Helvetia—Rosemont Helvetia-Rosemont Pima

Baboquivari

Pima Old

Hat

Hat

Bell Bell

o

osemont

semont

semont

mont

mont semont

osemont

Colorado

Colorado

Hat

Helvetia-Rosemon DISTRICT Baboquivari Arivaca Arivaca Baboquivari Quijotoa Baboquivari Helvetia-Rosemon Cerro Pima

Baboquivari Arivaca Helvetia-Rosemon Amole Arivaca Arivaca Empire Greaterville Arivaca Baboquivari Amole Helvetia-Rosemoni Empire Cababi Baboquivari Greaterville Pima

Growler Gunsight Helvetia—Ro Arivaca Old Helvetia-R Greaterville Greaterville Cerro

Helvetia-Rosemont Pima Cababi Helvetia-Rosemont Pima

Empire Empire

Empire

etc.)

group)

group)

Vista

group)

group)

mine

mines

deposits) deposits)

mine)

claims) placers)

Friday

mine

mine)

mines) mine

mine

mine

mine)

Buena

mine)

group)

gold

Gopher,

Guias

M.

Xavier

H.

placer

group)

placer mine)

mine)

54

&

group)

C.

(see

Colorado

Vista San

Las

Pauline mine Jay-Good

Lesjimfre

Queen

Hill

C.

M.

mine

mine)

Giant

Keystone Prince,

mine

(see

Prosperity

(see

South

Blue

(see

Ajax

mines

Cerro Horseshoe (see

Buena

(see

(see

Silver

Guias (see mines

Papago

Greaterville

deposit

Greaterville

(see

Elgin

group

(see

(see

(see

group

Chief,

(see (see

(see mine

mines

mine

Sherwood

Lease

Las

(see

mine

group

claims

(see

(see

mine

(see

Daylight-Naraganseft (see

Rebecca

(see mine

mine

mine

mine

mine

group

mine mine placer

mine

mine

(see

(see

mine State

Sulfide

mine mine

mine mine

mine and

(see

placers

Cont.

mine

mine

mine Electric Gulch mine

group)

mine mine

Gulch

mine

King Fleece

Star Gate

Peak

group

mine

2,

lode Mountain

mine Monument

Weight mine mine

Tungsten

mine

Friday

Enough

Bullion Coin

Hill King Copper

King

Rim

Hill

Card

mine

mines)

group)

mine

group)

Table

NAME

General General Giant Golconda Gnome Gold Gold Gold Golden Golden Golden

Gold Gold Gold Good Good Gopher

Grand Gould Graham Grand Graveyard

Greatervifie Greenfield

Green Green Grey Hancock

Guadalupe Harshaw Growler Gunsight Hartman-Homestake

Hayward’s Heavy Helmet Heintzelman Helena High High Hilo

Hilton Hilton

Hiltano Table 2, Cont.

SAME DISTRICT

Elomestake mine (see Indians-Arizona mine group) Waterman Elorse shoe gold placers Quijotoa E{ughes group (see Esperanza mine group) Pima Rughes Gulch (see Greaterville placer deposits) Greaterville Elughes mine group (see Banner mine group) Papago [lump mine (see Aquinaldo mine group) Papago [mmense lodes (see Las Guias mine group) Arivaca [mperial mine (see Mammoth mine) Silver Bell [ndex group (see Brownell mine) Quijotoa Endiana-Arizona mine group Waterman [ndian Club mine (see Isle Royal mine group) Helvetia-Rosemont [owana mine Baboquivari [ron Mask mine (see Jackson mine group) Old Baldy [sabel mine Amole [sabella mine Cimarron Mts. Isle Royal mine group Helvetia-Rosemont [vy May mine Amole Jackson mine group Old Baldy Jaeger mine Cababi Jean E group Coyote Jerome #2 mine Empire Jezebel mine Baboquivari Josephine mine (see Arizona Consolidated mine) Amole Juanita #9 (see Sparks mine) Baboquivari Jupiter mine Baboquivari Justice, Red Top, and La Plain mines Empire Kentucky Gulch (see Greaterville placer deposits) Greaterville Keystone mine Pima King-Exile mine group Helvetia-Rosemont Korn Kob prospect Redington La Plata mine (see Justice, Red Top, and La Plata mines) Empire Las Guias gold placers Arivaca Las Guijas mine group Arivaca Las Guijas tungsten placers Arivaca Last Chance claim group (see Gold Bullion mine) Baboquivari Lavery mine Empire Lead Carbonate mine Empire Leader mine Helvetia-Rosemont Leatherwood mine group Old Hat Lesjimfre claims Baboquivari Liberty mine Cerro Colorado Light Weight mine (see Heavy Weight mine) Helvetia-Rosemont Lilly, Saguaro, and Empire mines Gunsight Lincoln mine group Papago Little Chief mine Gunsight Little Dave mine (see Isle Royal mine group) Helvetia-Rosemont

55 Table 2, Cont.

NAME DISTRICT Little Helvetia mine (see Tip Top mine group) Helvetia-Rosemon Little Johnny mine (see Big Johnny and Little Johnny mines) Papago Little Mary mine Cababi Lone Mountain mine Empire Lone Valley mine group Pima Long Shot mine group Arivaca Los Pozos Gulch (see Greaterville placer deposits) Greaterville Lost Boy mine Helvetia-Rosemoni Louden mine (see Peach mine) Helvetia-Rosemoni Louisiana Gulch (see Greaterville placer deposits) Greaterville Lucido claim group Cababi Lucky Strike mine Gunsight Magnet Copper group (see Esperanza mine group) Pima Magonigal mine Silver Bell Mammoth mine Silver Bell Manganese King group Cimarron Mts. Mann mine (see California mine) Empire Man’s Dream mine Quijotoa Marconi mine group Pima Marion mine (see Franklin, Cushing, and Marion mine group) Helvetia-Rosemoni Mary E mine (See Mary G mine) Cerro Colorado Mary G mine Cerro Colorado McKay mine (see Ben Lomand mines) Quijotoa M. C. M. mine group Arivaca Mildren mine group Cababi Milton mine group (see Cimarron mine group) Montezuma Mineral Hill mine Pima Minnie mine Pima Mission mine Pima Mocking Bird mine group Quijotoa Mohawk mine Helvetia-Rosemont Montana mine Empire Monte Cristo mine Cimarron Mts. Montizona mine Cimarron Mts. Moore mine Arivaca Morgan mine group Quijotoa Morningstar mine (see St. Louis mine) Greaterville Mother Lode mine (see Edwards mine) Arivaca Mountain King mine (see Enzenberg mine) Greaterville Mountain Lion group (see Bullion Bar mine group) Gunsight Muheim-Grafen mine Helvetia-Rosemont Napoleon mine (see Papago Chief mine) Baboquivari Naragansett mine (see Daylight-Naragansett mines) Helvetia-Rosemont

56 Table 2, Cont.

AME DISTRICT Taragansett Bay mine (see Daylight-Naragansett mines) Helvetia-Rosemont cevada mine (see C. & H. mine group) Helvetia-Rosemont Iew Colorado mine Cerro Colorado cew Cornelia (Ajo) mine Ajo cew Dragoon (see Yellow Star mine) Baboquivari ew Gunsight mine (see Surprise mine) Gunsight Tewman mine Helvetia—Rosemont ew Olivette mine (see Olivette and Annette mines) Pima ew Years Eve mine Pima ew York mine Helvetia-Rosemont igger Gulch (see Greaterville placer deposits) Greaterville orth Star mine (see Contention mine) Pima oscut mine (see Dimple mine group) Helvetia-Rosemont )ceanic mine Arivaca )lcutt mine (see Eclipse mine group) Helvetia-Rosemont )ld Bat mine (see Old Mission mine) Amole )ld Boot mine (see Mammoth mine) Silver Bell )ld Bucket mine (see Contact mine) Arivaca )ld Dick mine Helvetia—Rosemont )ld Frijole mine (see Silver Spur mine) Helvetia-Rosemont )ld Hat mine (see Stratton mine) Old Hat )ld Mission mine Amole )ld Padre mine (see Pellegrin mine) Amole )ld Pap mine Helvetia—Rosemont )ld Pueblo mine Amole )ld Put mine Ilelvetia—Rosemont )ld Timer mine Cababi )ld Yuma mine Amole )live mine (see Olivette and Annette mines) Pima )livette and Annefte mines Pima )lympia mine group (see Banner mine group) Papago )mega and Omega Extension mines Helvetia-Rosemont )mega Extension mine (see Omega and Omega Extension mines) Helvetia-Rosemont )phir Gulch (see Greaterville placer deposits) Greaterville )regon Copper, Chicago, and Coconino mines) Helvetia-Rosemont )reona mine (see Amado mine group) Arivaca )ro Grande mine Cimarron Mts. )wasko mine (see Black Horse mine) Helvetia-Rosemont )xide mine Silver Bell )xide open pit (see Silver Bell mine) Silver Bell ack Rat group (see Mocking Bird mine group) Quijotoa addy Woods mine (see Indiana-Arizona mine group Waterman alo Verde mine Amole alo Verde mine Pima

57 Table 2, Cont.

NAME DISTRICT Papago gold placers (see Ash Creek and Pascola Canyon gold placers) Papago Papago mine Agua Dulce Papago Chief mine Baboquivari Papago Queen mine Amole Pascola Canyon gold placer (see Ash Creek and Pascola Canyon gold placers) Papago Pauline mine Helvetia-Rosemoni Paymaster mine group Pima Peach mine Helvetia-Rosemoni Peer and Peerless group Quijotoa Pellegrin mine Amole Pesqueria Gulch gold placers (see Las Gulas gold placers Arivaca Picacho mine Cababi Pickwick mine Helvetia-Rosemoni Pilot mine Helvetia-Rosemoni Pima group (see Alpha mine) Pima Pima open pit mine Pima Plumed Knight mine group Pima Pontotoc mine Catalina Prince mine Empire Princess group (see Mary G mine) Cerro Colorado Prosperity mine group Pima Providence mine (see Lincoln mine group) Papago Purcell mine (see Aquinaldo mine group) Papago Quebec mine Greaterville Quien Sabe mine (see Old Pueblo mine) Amole Quijotoa gold placers (see Horseshoe gold placers Quijotoa Rebecca mine (see Buena Vists mine group) Arivaca Red and Black Chief group (see Baboquivari mine) Baboquivari Red Carbonate mine (see New Years Eve mine) Pima Red Cloud mine Empire Red Oxide group (see San Xavier Extension mine) Pima Red Rock group (see El Tiro mine) Silver Bell Red Top mine (see Justice, Red Top, and La Plata mines) Empire Reilly Lode (see Sherwood mine) Cababi Rich 11111mine group Pima Ridley mine Helvetia-Rosemon Roadside mine Coyote Rosebud mine (see Amado mine group) Arivaca Rosemont group (see Franklin, Cushing, and Marion mine group) Helvetia-R osemon Rusty Red mine (see Contact mine) Arivaca Saginaw mine Amole Saginaw Hill mine (see Papago Queen mine) Amole

58 Table 2, Cont.

NAME DISTRICT Saguaro mine (see Lilly, Saguaro, and Empire mines) Gunsight St. Francis mine (see Roadside mine) Coyote St. Jude mine Roskruge St. Louis Gulch (see Greaterville placer deposits) Greaterville St. Louis mine Greaterville St. Patrick mine Quijotoa San Antonio mine Ajo San Juan mine Baboquivari San Luis mine (see Oceanic mine) Arivaca San Luis Wash gold placers Arivaca San Luis Wash tungsten placers Arivaca Santa Margarita mine (see Ivy May mine) Amole Santa Rita limestone quarry Helvetia-Rosemont San Xavier Extension mine Pima San Xavier mine Pima San Xavier Unit open pit Pima Saratoga mine (see Sweet Bye and Bye mine) Helvetia-Rosemont Senator Morgan mine group Pima Serasio group (see Lone Valley mine group) Pima Sherwood mine Cababi Sierrita open pit mine Pima Silver Bell mine Silver Bell Silver Crown mine Arivaca Silver Dollar mine Cababi Silver Giant mine Cababi Silver Helmet mine Pima Silver Hill mine Cerro Colorado Silver Hill mine group Waterman Silver Lead mine group Silver Bell Silver Queen mine Cababi Silver Queen mine (see Cerro Colorado mine) Cerro Colorado Silver Screen mine (see Ballas mine area) Quijotoa Silver Shield mine Cerro Colorado Silver Spur mine Helvetia-Rosemont Snyder group (see Crown King and Tiger mine groups; Esperanza mine group; and New Years Eve mine) Pima Snyder Hill prospect Amole Soto mine group (see Good Enough mine) Arivaca Southern Cross mine Helvetia-Rosemont South San Xavier mine group Pima Sparks mine Baboquivari S R K mine (see Bonanza mine) Coyote Starr mine (see Pellegrin mine) Amole State of Maine group (see State of Maine, Chief, Jerome #2, etc.) Empire State of Maine mine Empire Stella Mans No. 1 mine Cimarron Mts.

59 Table 2, Cont.

NAME DISTRICT

$tella Mans No. 2 mine Cimarron Mts. Steppe mine (see Little Mary mine) Cababi Sterling mine (see Oro Grande mine) Cimarron Mts. Stewart-Fernstrom mine group (see Vindicator mine group) Arivaca Stratton mine Old Hat Submarine group (see Black Bess mine group) Gunsight Sucker Gulch (see Greaterville placer deposits) Greaterville Sulfide Lead-Zinc mines Helvetia-Rosemont Sun-Gold Mining Co. (see Sun-Gold mine) Cababi Sunrise mine (see Sunshine and Sunrise mines) Papago Sunset Limited mine group Gunsight Sunset mine group Silver Bell Sunshine mine (see San Antonio mine) Ajo Sunshine and Sunrise mines Papago Surprise mine Gunsight Sweet Bye and Bye mine Helvetia-Rosemont Sweet group (see Pickwick mine) Helvetia-Rosemont Sweetwater mine (see Isabel mine) Amole Taylor X claims Old Hat Tellurium claim group (see Gold Bullion mine) Baboquivari Tiger mine (see Amado mine group) Arivaca Tiger mine (see Crown King and Tiger mine groups; and Esperanza mine group) Pima Tip Top mine group Helvetia-Rosemont Tit-for-Tat mine (see Prosperity mine group) Pima Tom Rigg mine (see Contact mine) Arivaca Total Wreck mine Empire Triangle mine (see Eclipse mine group) Helvetia-Rosemont Tungsten King mine (see Silver Dollar mine) Cababi Thnquepata or Tunquita mine (see Border mine) Arivaca Twin Buttes open pit mine Pima Twin Hill Prospect Amole Twin Peaks quarry Amole Uncle Sam mine (see Arizona Consolidated mine) Amole Union mine (see Mammoth mine) Silver Bell U. S. Grant mine (see Gold Gate mine group) Helvetia-Rosemont Ventana mine group Baboquivari Venus group (see Minnie mine) Pima Verde mine group (see Cimarron mine group) Montezuma Verde Queen mine Empire Victoria group (see Paymaster mine group) Pima Victoria mine Montezuma Vindicator mine group Arivaca V. 0. mine (see By Chance mine) Quijotoa Vulcan mine group Pima Wakefield group (see San Xavier Extension mine) Pima Weldon mine Quijotoa

60 Table 2, Cont.

NAME DISTRICT West Esperanza open pit mine (see Esperanza and West Esperanza open pit mines) Pima Wheeler-Perry group (see Esperanza mine group) Pima Whipperwell mine (see Amado mine group) Arivaca Whitcomb mine Pima Wisconsin mine (see Buckhorn mine) Greatervffle Wonder mine group (see Sunset Limited mine group) Gunsight Yellow Astor mine (see Sunset Limited mine group) Gunsight YeUow Bird mine (see Lincoln mine group) Papago Yellow Star mine Baboquivari York mine (see Daylight-Naraganseft mines) Helvetia-Rosemont Young America mine (see Oxide mine) Silver Bell Yuba mine Greaterville

61

Pini .n4f niff A

mines Pima

Amuran Mining Co. Contention; Copper Glance; Copper Queen

Silver mine Bell Silver Bell

Tiro; El Oxide Mammoth; mines Bell Silver

Unit open pit; Senator Morgan mine group Pima

Contention; Minnie; Mission mine; Xavier San

American & Smelting Refining Co. Top Tip group mine Helvetia-Rosemont

Amargosa Molybdenum Co. Eve New Years mine Pima

Amargosa Molybdenum & Copper Co. Hill mine High Pima

Amado Mining Co. Amado mine group Arivaca

Amado Papago Chief mine Bahoquivari

Alpha Co. Copper mine Alpha Pima

Allison Steel Co. King-Exile mine group Helvetia-Rosemont

Allison Gold Mining Co. Allison mine Baboquivari

Allison & Bros. Wicks Allison mine Baboquivari

Albert Co. Steinfeld Mammoth mine Silver Bell

Albatross Gold Mining Co. Albatross mine Arivaca

Alba Mines, inc. Amado group mine Arivaca

Akron Gold Co. Mining Badger; Jaeger mines Cababi

Ajo-Papago Mining Gold Co. Black Bess mine group Gunsight

Ajo Mines Corporation mine Black Prince Quijotoa

Ajo Gunsight Mining Co. Ajo Gunsight mine Gunsight

Ajo Cornelia Copper Co. Cornelia mine Ajo Ajo

Ajo Consolidated Copper Co. Ajo Consolidated mine Ajo

Ajax Mining Co. mine Ajax group Arivaca

& Saxby Adams Total Wreck mine Empire

Adams Hartman-Homestake mines Hat Old

Ace Co. Mining Carlo and Eclipse mines Waterman

NAME PROPERTY DISTRICT

INDEX MINING OF PROPERTY OPERATORS

TABLE 3 Anderson Contact mine Arivaca Sherwood mine Cababi Olivette; Annette mines Pima Andrada Marble Co. Andrad Marble quarry Helvetia-Rosemont Andrade Monte Cristo mine Cimarron Mts. California mine Empire Pauline mine Helvetia-Rosemont Copper Squaw mine Quijotoa Anglin Lost Boy mine Helvetia-Rosemont Aquinaldo Mining Co. Aquinaldo mine group Papago Aricu Mining Co. Blow Out mine Helvetia-Rosemont Arivaca Gold Mining & Milling Co. Ajax mine group Arivaca Arivaca Mining Co. Amado mine group Arivaca Arizona Comstock Mining Co. Comstock mine group Greaterville Arizona Consolidated Mining Co. Arizona Consolidated mine Amole Arizona Copper Bell Mining Co. Silver Hill mine group Waterman Arizona Copper Mining & Trading Co. Ajo Consolidated; New Cornelia (Ajo) mines Ajo Arizona Copper Mining Co. Arizona Consolidated mine Amole Arizona Copper Mines, Inc. Corregedor; Daily mines; Geesman; Leatherwood mine groups Old Hat Arizona Jupiter Mines, Inc. Jupiter mine Baboquivari Arizona Lead & Copper Co. Forty-nine (49) mine Empire Arizona Lead Mines Co. Sunshine; Sunrise mines Papago Arizona Materials and Service Co. Black Dragon mine group Baboquivari Arizona Mining Co. Ventana mine group Baboquivari Arizona Mining & Refining Co. Golden Gate mine group Helvetia-Rosemont Arizona Mission Mines Co. Pellegrmn mine Amole Arizona Molybdenum Co. Arizona Molybdenum mine Baboquivari Arizona Paymaster Mining Co. Paymaster mine group Pima Arizona Portland Cement Co., Div. of California Portland Cement Co. Twin Peak quarry Amole Arizona Tonopali Mining & Milling Co. Bee Hive mine Amole Arizona Tucson Copper Co. Ivy May mine Amole Associated Mining & Milling Co. Whitcomb mine Pima Table 3, Cont.

NAME PROPERTY D1ThICT

Atlas Mines, Inc. Atlas mine Silver Bell Atlas Mining Co. Atlas mine Silver Bell Atwood Silver Crown mine Arivaca Avery Border mine group Arivaca Ayers Mary G mine Cerro Colorado Azurite Copper & Gold Co. Mineral Hill mine Pima Baboquivari Gold Placer Co. Edna J. placer Baboquivari Backbone Mining Co. Backbone mine Arivaca Baker Cerro Colorado mine Cerro Colorado Ballestreras San Antonio mine Ajo Banner Mining Co. Contention; Copper Glance; Copper Queen; Daisy; Mineral Hill; Palo Verde mines Pima Banner-Sierrita Mining Co. Banner mine group Papago Barbre Silver Spur mine Helvetia—Rosemont Barnsdall Corporation Mineral Hill mine Pima Bartlett Picacho; Silver Queen mines Cababi Baxter Copper Glance; Copper King; Copper Queen mines; Senator Morgan mine group Pima Beals Gold King mine Baboqulvari Beard & Allen Copper Bell mine Amole Belds Mining Little Mary mine Cababi Bell Growler mine Growler Ben Lomand Mines Ben Lomand mines Quijotoa Bennett Daylight-Narragansett mines Helvetia-Rosemont Bent & Shields lowana mine Baboquivari Black Bess Consolidated Gold Mining Co. Black Bess mine group Gunsight Black Bess Mining Co. Black Bess mine group Gunsight Black Dragon Mining Co. Black Dragon mine group Baboquivari Black Prince Metal Production Co. Black Prince mine Quijotoa 11anche Rose Mining Co. Crown King & Tiger: Esperanza mine groups Pima Blankenship Copper World; Leader; Old Dick mines Helvetia-Rosemont Bledsoe Mary G mine Cerro Colorado Bonanza Park Mining Co. Isabel mine Amole Boston Gold-Copper Co. Growler mine Growler Boyd & Torrey Conejo (Cottontail) mine Arivac a Bradford Development Co. California mine Empire Bradley Lilly, Saguaro, and Empire mines Gunsfght Bramwell & Sullivan Sunset Limited mine group Gunsight Brickta St. Jude mine Roskruge Brooks Sulfide Lead-Zinc mines Helvetia-Rosemont Brouse Easter mine group Arivaca Brown Big Juanita mine group Baboquivari Daylight-Narragansett mines Helvetia-Rosemont Brownell Arizona Mining & Smelting Co. Brownell mine Quijotoa Bruce Carlo & Eclipse mines Waterman B. S. & K. Mining Co. Atlas mine Silver Bell Buckeye State Mining & Milling Co. Bee Hive mine Amole Bulldozer Mines Co. Bulldozer mine Helvetia-Rosemont cn Bullion Bar Mining & Development Co. Bullion Bar mine group Gunsight Burney Leader mine Helvetla-Rosemont Burns & Sons Long Shot mine group Arivaca Bush-Baxter Mining Co. Contention; Copper Butte; Copper Glance; Minnie mines Pima Bustamonte Papago Chief mine Baboqulvani Picacho mine Cababi Butler Gunsight mine Gunsight Buttes Copper Co. Minnie mine Pima Byfield Mining & Milling Co. Conejo (Cottontail); Silver Crown mines Arivaca Byrd Silver Hill mine group Waterman Cababi Mining Co. Picacho mine Cababi Calloway By Chance; Man’s Dream mines Quijotoa Calumet & Arizona Copper Co. Ajo Consolidated; New Cornelia (Ajo) mines Ajo Calvillo Bonanza mine Coyote Caizona Mining & Milling Co. Arivaca King mine Arivaca Table 3, Cont.

NAME PROPERTY DISTRICT

Cambell & Vreeland Copper King mine Amole Cardiello Crown claims Nos. 1 & 2 Helvetia-Rosemont Cardiello & Serasio Blow Out mine Helvetia-Rosemont Cardigan Copper Co. Cardigan mine Ajo Carlson Vindicator mine group Arivaca Carlson, Fernstrom, and Cummings Lesjimfre claims Baboquivari Carpenter St Jude mine Roskruge Carrillo Carlo & Eclipse mines Waterman Carter Contact mine Arivaca Carthage Silver Mining Co. Gunsight mine Gunsight Casey Easter mine group Arivaca Catalina Consolidated Copper Co. Daily mine; Geesman; Leatherwood mine groups Old Hat Catalina Mining Co. Battle Axe mine Amole Cates Contact mine Arivaca Cerro Colorado Mining & Milling Co. Cerro Colorado mine Cerro Colorado Cerro Cristo Mines Co. Cerro Colorado mine Cerro Colorado Chamrod Bulldozer mine; Tip Top mine group Helvetia-Rosemont Chavez Berkley mine Baboquivari Chemical Process Copper Company El Tiro mine Silver Bell Chesterfield Copper Co. Crown King & Tiger; Esperanza mine groups Pima Childs Brownell; By Chance mines Quijotoa Childs et al Cardigan mine Ajo Chulson Elgin; King-Exile mine groups; Newman; Old Dick; Oregon Copper, Chicago, and Coconino; Southern Cross mines Helvetia-Rosemont Plumed Knight mine group; San Xavier Extension mine Pima Chilson & Green Peach mine Helvetia-Rosemont Choate Picacho mine Cababi imuerra ivrrnmg i ngrneerrng co., mc. iani rnme .oauoqulvarl Cleveland-Arizona Mining Co. El Tiro mine Silver Bell Cleveland Tungsten Co. Vindicator mine group Arivaca Clum & Walker Clum Clanny mine Helvetia—Rosemont Collins C. & H. prospect Helvetia-Rosemont Col. Randolph Old Yuma mine Amole Colonia Copper Co. Growler mine Growler Columbia Copper Co. Columbia mine Amole Combs Bluff mine group Old Hat Comobabi Copper Co. Comobabi and Crusader mines Cababi Como-Pima Mining Co. Little Mary mine Cababi Comstock Mines Co. Comstock mine group Greaterville Conard Edna J. placer Baboquivari Consolidated Arizona Mine & Milling Co. Cerro Colorado mine Cerro Colorado Continental Copper, the. Daily mine; Geesman mine group Old Hat Continental Materials Corp. C W T mine Pima Contreras Silver Lead mine group Silver Bell Control Mines Co. Daily mine; Geesman; Leatherwood mine groups Old Hat Control Mines, Inc. Daily mine; Geesman; Leatherwood mine groups Old Hat Cooley Copper Squaw mine Quijotoa Coplen Big Banana mine; Black Dragon mine group; Giant; San Juan; Yellow Star mines Baboquivari Coplen & O’Brien Coyote Hole prospect Cababi Copper King Co. Mineral Hill mine Pima Copper Ridge Mining Co. Ajo Cornella mine Ajo Copper Star Mining Co. Plumed Knight mine group Pima Cornelia Copper Co. New Cornelia (Ajo) mine Ajo Corzellus Blue Jay-Good Friday mines Helvetia-Rosemont Costello High Hill mine Pima Cotton & Flynn Silver Hill mine Cerro Colorado Covered Wells Copper Co. St. Patrick mine Quijotoa Cowboy Mining & Smelting Co. Cowboy mine Pima Table 3, Cont.

NAME PROPERTY DISTRICT

Cummings Border mine group Arivaca Lesjimfre claims Baboquivari Cuprite Mining & Smelting Co. Cuprite mine group Helvetia-Rosemont D. & P. Mining Co. Silver Spur mine; Tip Top mine group Helvetia-Rosemont Daily Arizona Copper Co. Daily mine Old Hat Daily Mines Co. Daily mine Old Hat Daylight Mining Co. King-Exile mine group Helvetia—Rosemont Del Rio Minerals Bulldozer mine Helvetia-Rosemont Dement & Schley Montana mine Empire Denning Mining Co. Little Chief mine Gunsight Desert Gold Mining Co. Jaeger mine; Lucido claim group Cababi De Silva & Allinio Stella Mans No. 1; Stella Mans No. 2 mines Cimarron Mts. Dick & Sullivan Chief mine Empire Dinnerly Jupiter mine Baboquivari Don Lieberman Enterprises, Inc. Easter; Good Enough mine groups Arivaca Draham Enterprises Moore mine Arivaca Drake Mining Co. Black Hawk; Jean E groups Coyote Driggs Justice, Red Top, and La Plain; Red Cloud mines Empire Dubernac Mining Co. Lone Mountain mine Empire Duffy Sherwood mine Cababi Dunn Mildren mine group Cababi Duval Corporation Esperanza open pit mines Pima Duval Sierrita Corporation Sierrita open pit mine Pima Duval Sulphur & Potash Company Esperanza open pit mines Pima Eagle Picher Mining & Smelting Co. San Xavier mine; South San Xavier mine group Pima Eastern Pacific Mining & Milling Co. State of Maine mine Empire Ehrenberg Picacho mine Cababi Elgin Mining Co. Elgin mine group Helvetia-Rosemont ,174,’4- V., 4,.,,4,,., TT7Tøfin—R.,rrnnnf El Oro Mining Co. Greaterville placer deposits Greaterville El Oro Mining & Milling Co. Allison mine Baboquivari Elston Esperanza Co. Esperanza mine group Pima El Tiro Copper Co. El Tiro mine Silver Bell El Tiro Leasing Co. El Tiro mine Silver Bell Emperor & Dutchess Mines Co. Emperor and Dutchess mines Cababi Emperor Copper Company Mineral Hill mine Pima Empire Mining & Development Co. Total Wreck mine Empire Empire Zinc Company San Xavier mine; South San Xavier mine group Pima Falk Silver Shield mine Cerro Colorado Fernald & Scott Gunsight mine Gunsight Fernstrom Lesjimfre claims Baboquivari Fernstrom Mining Co. Black Gold; Las Guijas mine groups; San Luis Wash tungsten placers; Vindicator mine group Arivaca Ferrell & Gow Growler mine Growler F. H. & R. Mining Co. Vindicator mine group Arivaca Finlyson Border mine group Arivaca Fisher Mining Co. Gunsight mine Gunsight Flynn Jupiter mine Baboquivari Forbes Tip Top mine group Helvetia-Rosemont Foy Contention; Copper Butte; Copper Glance; Copper King; Copper Queen mines Pima Francis Jezebel; Yellow Star mines Baboquivari Francis Hagerman Mining Co. Banner mine group Papago Fullerton Long Shot mine group Arivaca Gardner & Young Total Wreck mine Empire Gastellum New Years Eve mine Pima General Electric Co. Las Guijas mine group Arivaca General Mines, Ltd. New Years Eve mine Pima Glance Mining Co. Contention; Copper Glance mines Pima Glasscock, C. G. Big Banana mine Baboquivari Gold Bar Mining Co. Allison mine Baboquivari Gold Bullion Consolidated Mining Co. Gold Bullion mine Baboquivari Gold Bullion Mines Co. Gold Bullion mine Baboquivari Table 3, Cont.

NAME PROPERTY DISTRICT

Gold King Mining & Development Co. Gold King mine Baboquivari Golden Crown Mining Co. Indiana-Arizona mine group Waterman Good Friday Mining Co. Blue Jay-Good Friday mines Helvetia-Ro semont Goodsill & Carry Bros. Mary G mine Cerro Colorado Goon Buena Vista mine group Arivaca Gordon Magonigal mine Silver Bell Gorman Old Dick mine Helvetia—Rosemont Gould Copper Mining Co. Gould mine Amole Graham & Dickey Gunsight mine Gunsight Grant Sulfide Lead-Zinc mines Helvetia—Rosemont Graybill Dimple claim group Helvetia-Rosemont Greaterville Dredge Gold Mining Co. Greaterville placer deposits Greaterville Great Northern Exploration Co., Inc. Prosperity mine group Pima Green & Owen Newman mine Helvetia-Rosemont Greer Sunset Limited mine group Gunsight Griffith Yellow Star mine Baboquivari Grijalba Papago Chief mine Baboquivari Grindell Lead Carbonate mine Empire Griscom Mining Co. Papago Chief mine Baboquivari Growler Copper Co. Growler mine Growler Guadalupe Mining Co. M. C. M. mine group Arivaca Gunsight Detroit Mining & Milling Co. Bullion Bar mine group Gunsight Gunsight Gold & Tungsten Mining Co. Sunset Limited mine group Gunsight Gunsight Mining Co. Gunsight; Surprise mines Gunsight Hadsell Mocking Bird mine group Quijotoa Halbert Golden Gate mine group Helvetia-Rosemont Hampton Lost Boy mine Helvetia-Rosemont Hardy Little Mary mine Cababi Hart & Weigel Silver Spur mine Helvetia-Rosemont Hartley Sunset mine group Silver Bell Hedderman Cunqulan; Desert Lode mines Cababi Hedrick Morgan mine group Quijotoa Helidorado Gold & Silver Mining Corp. Mocking Bird mine group Quijotoa Helmet Peak Mining & Milling Co. Prosperity mine group Pima Helvetia Copper Co. Black Horse shaft; Copper World mine; Elgin mine group; Heavy Weight mine; Isle Royal mine group; Leader; Old Dick; Pilot mines Helvetfa-Rosemont Helvetia Copper Co. of Arizona Black Horse shaft; Copper World mine; Elgin mine group; Heavy Weight mine; Isle Royal mine group; Leader; Old Dick mines Helvetia-Rosemont Helvetia Mining & Milling Co. Leader mine Helve tia-Ro semont Helvetia Mining Trust Elgin mine group Helve tia-Rosemont Helvetia Oil Company Old Dick mine Helvetia-Rosemont Hermosa Copper Co. Ivy May mine Amole Herring C. & H. prospect Helvetia-Rosemont Hickey Berkley mine Baboquivari full Buckhorn mine Greaterville Bluff mine group Old Hat ‘-a Arizona No. 3 mine Pima Hilton Chief; Forty-nine; Gopher; Graveyard; Hilton; Jerome #2; Justice, Red Top and La Plain; Lead Carbonate; Lone Mountain; Prince; Red Cloud; State of Maine; Verde Queen mines Empire Hflzthger Marconi mine group Pima Hines Dimple claim group Helvetia-Rosemont H. M. Mining Co. By Chance mine Quijotoa Hoff Forty-nine mine Empire Holderness Daylight-Narragansett mines Helvetia-Rosemont Holliday Arrastra mine Greaterville Golden Gate mine group Helvetia-Rosemont Holmes & Padres High Card mine Cababi Huachuca Mining & Smelting Co. Mammoth mine Silver Bell Hughes & Peterson Naragansett mine group Helvetia-Rosemont Humpel C. & H. prospect Helvetia-Rosemont

Waterman

group mine Indiana-Arizona Co. Mining Copper Knox-Arizona

Quijotoa group mine Morgan mine; Vaca Cara

Montezuma

mine Victoria Knight

Papago

mines Sunrise and Sunshine set Kios

Coyote

mine Bonanza Kerr

Quijotoa area mine Balms Inc. Mines, Merger Julian

Greaterville

group mine Comstock & Clyne Jones

Helvetia-Rosemont Bye mine and Bye Sweet

Gunsight

group mine Limited Sunset Jones

Helvetia-Rosemont

group claim Dimple Jarnagin

Arivaca

placers tungsten Wash Luis San Jarnigan

Cababi

mine Picacho & Haistead Jaeger

Cababi

group claim Lucido mines; Jaeger Badger; Jaeger

Empire mine Hilton

Arivaca

mine King Arivaca Jacobs

Arivaca

mine Oceanic

Ish

Mts. Cimarron

mine Isabella Co. Mines Isabella

Baboquivari

mine lowana Inc. Mines, lowana

Helvetia-Rosemont mines Friday

Jay-Good

Blue Co. & Development Mining Iowa —

Waterman group mine Indiana-Arizona

Amole mine Yuma Old Co. Separation Ore International

Whetstone

mine Plate Copper Inc. Mines, International

Waterman group mine Indiana-Arizona Co. Mining Indiana-Arizona

Waterman group mine Indiana-Arizona Co. Development Indiana-Arizona

Waterman group mine Indiana-Arizona Co. Copper Indiana-Arizona

Quijotoa

placers gold Horseshoe Co. Mining Gold Imperial

Bell Silver

mine Mammoth Co. Copper Imperial

aterville Gre

mine Quebec & Christman Huribut

Greaterville group mine Comstock Huribut

Helvetia-Rosemont

group mine Gate Golden Hunnell

DISTRICT PROPERTY NAME

Coat. 3, Table KyrraK & bartlett Silver Dollar mine Cababi L. & R. Comstock mine group Greatervile L. B. D. M. Mining Co. Columbia mine Amole Lamp Jupiter mine Baboquivari Larrymade Mines Co. Morgan mine group Quijotoa Larrys Jupiter mine Baboquivari Lauterback Silver Spur mine Helvetia-Rosemont Lauterback & Murphy Curtis mine Helvetia-Rosemont Leda Mines Consolidated M. C. M. mine group Arivaca Lemas Good Enough mine group Arivaca Leonard Sherwood mine Cababi Christenson-Lane mine group Helvetia-Rosemont Levy Victoria mine Montezuma Lewlsohn Copper Co. Broad Top; Daylight-Naragansett mines; Falls claim Helvetia-Rosemont Lewisohn Estate Franklin, Cushing, and Marion; King-Exile mine groups; Mohawk; Newman; Peach; Southern Cross mines Helvetia-Rosemont Cz Liberty Mining & Smelting Co. Liberty mine Cerro Colorado Liberty Silver Mines Co. St. Louis mine Greatervifle Lim Buena Vista mine group Arivaca Lincoln Consolidated Mining Co. Lincoln mine group Papago Long Growler mine Growler Louden Mining Co. Peach mine Helvetia—Rosemont Lowell Border mine group Arivaca Silver Hill mine Cerro Colorado Luofboro & Nelson Silver Queen mine Cababi Luper Copper Squaw mine Quijotoa Mac Farlane Newman mine Helvetia-Rosemont Silver Hill mine Cerro Colorado McCarthy Long Shot mine group Arivaca McCaughy Mildren mine group Cababi McCaughy Mildren mine group Cababi McCleary Pickwick mine Helvetia-Rosemont Table 3, Cont.

NAME PROPERTY DISThTCT

McFarland Sweet Bye and Bye mine Helvetia-Rosemont McFarland & Hullinger Elgin mine group Helvetia-Rosemont McFarlane & Hullinger Battle Axe; Old Pueblo mines Amole San Xavier mine Pima McGee Keystone mine Pima McKay Omega and Omega Extension mines Helvetia-Rosemont McMahon Gopher mine Empire New York mine Helvetia-Rosemont McNaft Monte Cristo mine Cimarron Mts. Maffeo Franklin, Cushing and Marion mines; King-Exile mine group Helvetia-Rosemont Magnate Copper Co. Crown King and Tiger; Esperanza mine groups Pima Manganese King Mining Co. Manganese King group Cimarron Mts. Manhattan Company Horseshoe gold placers Quijotoa Manzo, Death, & Mitchell Bonanza mine Coyote Martinez St. Louis mine Greaterville Mary G Mining Co. Mary G mine Cerro Colorado Mary Leasing Co. Mary G mine Cerro Colorado Mattingly Tip Top mine group Helvetia-Rosemont Maxwell High Card mine Cababi May Comobabi and Crusader mines Cababi M. C. M. Mining & Milling Co. M. C. M. mine group Arivaca Medd Little Mary mine Cababi Michigan-Arizona Development Co. Black Horse shaft; Copper World mine; Elgin mine group; Heavy Weight mine; Isle Royal mine group; Leader; Old Dick mines Helvetia—Rosemont Middleton Mines, Inc. Forty-nine mine Empire Midland Copper Co. Conglomerate mine Greatervifie Contention; Copper Glance; Copper King; Cnnnv Chipp.n rnnpc pin, i Mildren Mining Co. Mildren mine group Cababi Mile Wide Copper Co. Columbia; Copper Bell; Copper King mines Amole Milton — Sturges Cimarron mine group Montezuma Mineral Hill Consolidated Copper Co. Mineral Hill mine; Plumed Knight mine group Pima Mineral Hill Mining Co. Mineral Hill mine Pima Minerals & Metals Corp. Ridley mine Helvetia-Rosemont Mitchell Silver Shield mine Cerro Colorado Molybdenum, Inc. Leader mine Helvetia-Rosemont Montana-Arizona Mining Co. Cimarron mine group Montezuma Montizona Copper Co. Montizona mine Cimarron Mts. Moore Gold Bullion mine Baboquivari Mountain States Uranium Co. San Juan mine Baboquivari Muheim Muheim-Graften mine Helvetia-Rosemont Myers Sunset Limited mine group Gunsight Myers, Clark, & Rowe Co. San Xavier mine Pima Nail Golden Gate mine group Helvetia-Ro semont Naragansett Mines (Copper) Co. Daylight-Narragansett mines Helvetia-Rosemont New Cornelia Copper Co. Ajo Consolidated; New Cornelia (Ajo) mines Ajo cji New Cornelia Division of Phelps Dodge Corp. Ajo Consolidated; New Cornelia (Ajo) mines Ajo New Venture Placer Mining Co. Las Guijas gold placers Arivaca New York Copper Co. New York mine Helvetia-Rosemont Noche & Yacuma Copper Plate mine Whetstone Noscut Mining Co. Dimple mine group Helvetia—Rosemont Oceanic Gold Mining Co. Oceanic mine Arivaca O’dell & Mears Papago Chief mine Baboquivari Ohio Arizona Copper Company Silver Hill mine group Waterman Old Gold Mining Co. Allison mine Baboquivari Old Hickory Copper Co. Jackson mine group Old Baldy Old Pueblo Mining & Milling Co. Old Pueblo mine Amole Olive Camp Mining Co. Olivette and Annette mines Pima Omega Copper Co. Omega and Omega Extension mines Helvetia-Rosemont Ore Metal & Engineering Corporation Las Guijas mine group Arivaca Oreona Mining Co. Ajax; Amado mine groups Arivaca Ortega Victoria mine Montezuma Table 3, Cont.

NAME PROPERTY DISTRICT

Otey & Forney St. Louis mine Greatervifie Owens Bulldozer mine Helvetia—Rosemont Oxide Copper Company Oxide mine Silver Bell Francisco Padres Picacho mine Cababi Paflanes Buckhorn mine Greaterville Paly & Anderson High Hill mine Pima Papago Chief Mines Papago Chief mine Baboquivari Papago Copper Company Columbia mine group Cababi Papago Mining Co. Papago mine Aqua Dulce Papago Queen Mining Co. Papago Queen mine Amole Parber Jackson mine group Old Baldy Paymaster Consolidated Mining Co. Paymaster mine group Pima Paymaster Mining Company Paymaster mine group Pima Paymaster Silver & Lead Co. Paymaster mine group Pima Pellegrin Old Mission; Pellegrin mines Amole Pemberton Lone Valley mine group; Silver Helmet mine Pima Pettljohn & Kennedy Black Diamond group Cimarron Mts. Phelps Dodge Corporation Conglomerate mine Greaterville Geesman; Leatherwood mine groups Old Hat Picacho Mines, inc. Cunquian; Old Timer mines Cababi Picacho Mining Co Picacho mine Cababi Pidgett Comobabi and Crusader mines Cababi Pike Esperanza mine group Pima PIma County Mining & Smelting Co. Mammoth mine Silver Bell Pima Mining Co. Alpha; Daisy mines; Pima open pit mine Pima Pioneer Smelting Co. Gould mine Amole Plumed Knight mine group Pima Plumed Knight Leasing Co. Plumed Knight mine group Pima Pontotoc Copper Company Pontotoc mine Catalina Powers Sweet Bye and Bye mine Helvetia-Rosemont ±-‘roaucer ivrrnrng meinng o. browneil mme Quij otoa Prosperity Smelting & Mining Co. Prosperity mine group Pima Pumice Corporation of Arizona San Antonio mine Ajo Purcell Sunshine & Sunrise mines Papago Quebec Consolidated Mining Co. Quebec mine Greaterville Rainey Bulldozer mine Helvetia—Rosemont Ramsdall Daylight-Narragansett mines Helvetia-Rosemont Pontotoc mine Catalina Ramsdell Mines Co. Sunshine and Sunrise mines Papago Ramsey Golden Gate mine group Helvetia—Ro semont Randolph & Huntington Roadside mine Coyote Redhead Picacho mine Cababi Reilly Mines Co. Old Yuma mine Amole Rendall Ore Reduction Co. Ajo Consolidated mine Ajo Rescue Copper Co. Ajo Consolidated; New Cornelia (Ajo) mines Ajo Rhads & Holmes Silver Giant mine Cababi Rich Hill Mining Co. Rich Hill mine group Pima Riddle Gold King mine Baboquivari Roberts Mary G mine Cerro Colorado Robinson Emmett and Elgth mine Baboquivari Rogers Little Mary mine Cababi Rosemont Copper Co. King-Exile mine group; Mohawk; Old Pap; Old Put; Oregon Copper, Chicago, and Coconino; Peach mines Helvetia-Rosemont Rosemont Development Co. King -Exile mine group; Mohawk; Oregon Copper, Chicago, and Coconino; Peach mines Rosemont Mines, Inc. Omega and Omega Extension mines Helvetia-Rosemont Rowcroft M. C. M. mine group Arivaca Rudolph Old Timer mine Cababi Rutledge Silver Crown mine Arivaca Saginaw Mining Co. Ivy May; Palo Verde; Papago Queen; Saginaw mines Amole St Louis Copper Co. Ajo Consolidated; New Cornelia (Ajo) mines Ajo St. Louis Mines, Inc. St. Louis mine Greaterville

Queen Silver Consolidated Mining Co. Queen Silver mine Cababi

Mines Silver Hill Co. Silver Hill mine group Waterman

Silver 11111 Consolidated Co. Copper Silver mine Hill group Waterman

Silver Colorado Mining Corporation of New Am. Colorado mine Cerro Colorado

Silver Mining Bell Company mine Mammoth Silver Bell

& Sierrita Mining Ranching Co. Keystone Cowboy; mines Pima

& Mining Sierra Ranching Co. Top mine Tip group Helvetia-Rosemont

Siebert Berkley mine Baboquivari

Copper Sherwood Co. Sherwood mine Cababi

Shannon inc. Mines, Giant mine Baboquivari

Shanklin Hartman-Homestake mines Old Hat

Shafer & Mining Co. Milling Sunshine and Sunrise mines Papago

Serasio Lone Valley mine group Pima

Franklin Selim South San Xavier mine group Pima

& Hyde Scott Peach mine Helvetia-Rosemont

Scott Mohawk mine Helvetia-Rosemont

Schwartz Enough Good mine group Arivaca

& Schley Dement mine California Empire

Monument Green mine Helvetia-Rosemont

Schley Forty-nine; Total mines Wreck Empire

San Xavier & Mining Co. Smelting Xavier San mine Pima

San Xavier Extension Mining Co. Xavier San Extension mine Pima

Santa & Rita Water Mining Co. Greaterville placer deposits Greaterville

Santa Mining Rita Co. Copper World mine Helvetia-Rosemont

Santa Rita Co., Mining Limestone Division Santa Rita limestone quarry Helvetia-Rosemont

San Antonio Co. Mine Antonio San mine Ajo

San Luis Co. Mining Oceanic mine Arivaca

Sanford Leatherwood mine group Old Hat

Sands Lucky mine Strike Gunsight

St. & Louis Smelting Refining Co. mine Forty-nine Empire

NAME PROPERTY D1ThICT

Table Cont. 3, uverca ivirnmg i ivrriiing to. LIIICUIH I1HH group r upag o Simmons Oceanic mine Arivaca Snyder Mining & Milling Co. Conglomerate mine Greaterville Snyder Cerro Colorado mine Cerro Colorado New Years Eve mine Pima Silver Hill mine group Waterman Sonora Exploration & Mining Co. Cerro Colorado mine Cerro Colorado Soto Buena Vista; Good Enough mine groups Arivac a Southern Arizona Mining Co. Pickwick mine Helvetia-Rosemont South San Xavier Copper Co. South San Xavier mine group Pima Southwestern Ore Corp. Las Guij as mine group Arivaca Southwest Metal Mines, Inc. Ivy May mine Amole Sowle s Mildren mine group Cababi Sparks Surprise mine Gunsight Standard Thngsten Corp. Yellow Star mine Baboquivari Taylor X claims Old Hat Steinfeld Cerro Colorado mine Cerro Colorado

-Z1 Steinfeld & Co. Daylight-Narragansett mines; Eclipse mine CD group Helvetia—Ro semont Stephens-Harford Mines, Inc. Morgan mine group Quijotoa Stepp Bros. Little Mary mine Cababi Stetson Co. Greaterville placer deposits Greaterville Stockwell & Cummings Easter mine group Arivaca Stratton Consolidated Copper Co. Stratton mine Old Hat Stratton Copper Co. Stratton mine Old Hat Strong & Harris Papago Queen mine Amole Strucluneyer, Young, Price & Dorsey Manganese King group Cimarron Mts. Sullivan Copper Mountain mine Empire Sullivan Lilly, Saguaro, and Empire mines Gunsight Sullivan & Pantano Gopher mine Empire Sun-Gold Mining Co. Sun Gold mine Cababi Swastika Copper & Silver Mining Co. Rich Hill mine group Pima Swastika Mines Co. Rich Hill mine group Pima Sweetwater Mining Co. Isabel mine Amole Table 3, Coat.

NAME PROPERTY DISTRICT

Taggert & Drunzer Blue Jay-Good Friday mines Helvetia-Rosemont Talcott Black Dragon mine group Baboquivari Taylor Comobabi and Crusader mines Cababi Taylor X claims Old Hat Senator Morgan mine group Pima Taylor & Gorman San Juan mine Baboquivari Texas-Arizona Copper Co. Pontotoc mine Catalina The Richard M. & M. Co. Buena Vista mine group Arivaca Thornel Co., Inc. Arizona No. 3 mine Pima Thornton Jezebel mine Baboquivari Tideland Oil Company Big Banana mine Baboquivari Tip Top Copper Co. Bulldozer mine; Tip Top mine group Helvetia-Rosemont Tip Top Mining Co. Tip Top mine group Helvetia-Rosemont Tombstone Mining Co. of Arizona Allison mine Baboquivari Tom Reed Gold Mines Allison mine Baboquivari Tong Jerome #2; State of Maine mines Empire Torres Total Wreck mine Empire Torrey & Roper Silver Crown mine Arivaca Tucson Arizona Copper Co. Palo Verde; Papago Queen; Saginaw mines Amole Tucson Consolidated Copper Co. Old Pueblo mine Amole Tucson Ore Milling Co. Old Yuma mine Amole Hilton mine Empire Tucson Transfer Co. California mine Empire Thete Dimple claim group Helvetia—Rosemont Tungsten Alloys Corp. Las Guij as mine group Arivaca Tungsten Mining Corp. Las Guijas mine group Arivaca Turner Mary G mine Cerro Colorado Turners Sunset Limited mine group Gunsight Twin Buttes Mining & Smelting Co. Contention; Copper Butte; Copper Glance; Copper King; Copper Queen mines; Senator Morgan mine group Pima uciali tiac irrncess; uerro ororaao mines uerro UO1OTQO U. S. Magnetite Co. Chief mine Empire Vail Total Wreck mine Empire Ventana Mining Co. Ventana mine group Baboquivari Verde Queen Mining Co. Verde Queen mine Empire Verduzco Papago Chief mine Baboquivari Vinetz Tip Top mine group Helvetia-Rosemont Vogel Mining Co. Amado mine group Arivaca Vulcan Consolidated Mining Co. Vulcan mine group Pima Vulcan Copper & Zinc Mining Co. Vulcan mine group Pima Vulcan Mining Co. Vulcan mine group Pima Walsh Arivaca King; Backbone mines Arivaca Waterman Mountains Mining Co. Indiana-Arizona mine group Waterman Wayne Developing Co. Mildren mine group Cababi Weideman Columbia mine group Cababi Weldon Gold & Copper Co. Weldon mine Quij otoa Wells Corregedor mine Old Hat Westbrook & DeRhodes Oro Grande mine Cimarron Mts. Western American Mines Co. El Tiro mine Silver Bell Western Minerals Corp. Indiana-Arizona mine group Waterman Whitcomb & Associates Las Guijas mine group Arivaca Whitcomb Mining & Milling Co. Whitcomb mine Pima Whitney Vindicator mine group Arivaca Williams Border mine group Arivaca Jaeger mine Cababi El Tiro mine Silver Bell Wilson Lost Boy mine Helvetia-Rosemont High Hill mine Pima Wilson Mining, Inc. Daylight—Narragansett mines Helvetia-Rosemont Withers Little Mary mine Cababi Workman Mary G mine Cerro Colorado Worsley Mary G mine Cerro Colorado Wright Mines & Development Co. Gold King mine Baboquivari Yellow Bird Silver Mines Lincoln mine group Papago Zappia Good Enough mine group Arivaca Zeckendorf Omega and Omega Extension mines Helvetia-Rosemont TABLE 4 INDEX OF MINING PROPERTY

MININO DISTRICT LOCATION MINERAL OEOLOOY TYPE OF OPERATION REFERENCES AND MINES T. R. See. PRODUCTS AND PRODUCTION

I. Agus Dulce District 1SS- 9W Au, Ag-, Cu Weak and spotty copper silver mineraliza several small, shallow prospect Bryan, 1925, p. 194 (Agus Dulce MUss., ONefi 165 lOW tion, sometimes with gsld values enriched pits and shafts. Very minor pro ARM file data Hills) at the surface, slung fissures or basic dikes duction. Most work dose was at cutting Mesozoic granite and gneiss. Papago mine, in protracted T15S, R1OW, NE% sec. 26.

II. Ajo District l2S- 6W Cu, Ag, Au, 1. Copper, silver, and gold mineralization Predominantly open pit mining. Lakes, 1900 )Ltttle Ajo MUss, and Chico 13S 7W silica, feldspar, on fracture planes and diaaeminated in brec Small irregular production of Joralemon, 1914, 1915 Shunte Hills) mica )Mo, Zn) ciated Laramide intrusive and adjacestCre— high grade oxidized copper ore Bryan, 1925 taceous voleanics. Some local high grade, from about 1854 to 1917 and al Oilluly, 1937, 1938, 1942, 1940 narrow, irregular vein—like deposits in vu)— most continuously thereafter Romalo & Robinson, 1952 caries and spotty occurrences near fault from open pit operations. To ARM file date zones in volcanics and intruaive. Erratic tal production thru 1972 would secondary copper miseralization in fan— amount to some 350 million glumerata. tons of ore containing about 2. a 2. Pegmatite veins and masses in Mesozo million tuna of copper, 19 mil 00 ic granitic intrusive. lion ounces of silver and 1.55 3. Spotty, irregular gold planers. million ounces of gold. Consid erable silica flux and some feld spar and scrap mica also pro duced.

1. Ajo Consolidated mine 12S 6W W½ Cu, Ag, Au Spotty and irregular vein—like bodies of high Early selective surface and Joralemon, 1914 )Arizona Copper Mining & 26 grade copper carbonates, chaleocite, and underground mining of some Otlluly, 1940 Trading Co., St. Louis Cop copper sulfides along fractures in Creta— 10, 000 inns of highgrade copper ARM file data per Cu., Rescue Copper Co., ceous volcanies. Disseminated copper min ore prior to 1917 when taken Rendall Ore Reduction Co., eralization in and along faulted tongue of over and included thereafter in Aju Consolidated Copper Co., Laramide quartz monzonite intrusive. New Cocnelia open pit operation. New Cornelta Copper Co., Calumet & Arizona Copper Co., New Cornelta Div., Phelps Dodge Corp.)

2. Ajo Cornelia mine 12S OW SW ¼ Cu, Ag, Au— Lenticular deposit of erratic copper car— Shallow shaft wurkings. About Mines and Copper Handbook, )Ajo Cornelia Copper Co., 26 bunates and minor chatcuctta is steeply dip- 40 tons of high grade copper ore 1916 Copper Ridge Mng. Co.) SE ¼ pingTertiaryfanglomeratewithinterfinger- produced is 1917. Mines Handbook, 1922 27 ing vo)eanics. ARM file data

3. Cardigan mine 12S OW SW ¼ Cu, Ag, Au— Narrow, irregular veins containing quartz, Shallow shsftand surface opera- Mines and Copper Handbook, )CardiganCopperCo., Childs, 28 speeulartte, epidote, barite, ankerite, and tions. Some 1,000 tons of hand 1920 et at) spotty copper oxides, carbonates and sul— picked copper urn produced in- Otlluly, 1940 sa. a iwnd Cnaaoii. volonta u brm1oØ from 1117-11W *311 nil ua a major bolt aae. iwngbpbote4%Cuad 10 a.. 4. New Cornelia (Ajo) mine 12S 6W SE¾ Cu, Ag, Au (Mo, Veinlets, seams, and disseminatione of Open pit operation. Totel pro— Joralemon, 1914 (Arizona Copper Mining & 22 Zn) chalcopyrite, boroite, sod minor pyrite, ox ductioo from 1917 through 1972 DeKalb, 1918 Trading Co. • St. Louis SW ¾ idized in upper part in carbonatee, silicates, amounts to some 350 million Greenway, 1920 Copper Co., Rescue Copper 23 and minor chalcocite, deposited in fractured tons averaging about 9. 8% Cu, Allen, A. W., 1922 Co., Conelia Copper Co., NW ¾ and faulted, altered Laramide quartz moo— 0.05 oz. Ag/T, sod 0. 004 oz. Richard, 1923, 1921 New Conelia Copper Co., 26 zonite and bordering quartz diorite facies Au/T. Higher grade ore in early logham & Barr, 1932 Calumet & Arizona Copper NE ¾ and ofteo in close association with irregular years sod greater tonnage of Stewart, L. A., 1933 Co., New Coroelia Div., 27 pegmatiin zones in the intrusive. Mineral lower grade in more recent Gillaly, 1937, 1938, 1942, Phelps Dodge Corp. ization extends into bordering intruded and years. 1946, 1952 altered Creinceous volcanics. Minor spotty Hardwick, 1960 molyhdenite sod ephalerite. Dixon, 1966 May, 1968 ABM file dain

5. Sso Aoinnio mine 13S 7W No. Silica flux, feld— Irregular pegmatite dikes sod masses in Open pits. Small Jote of scrap Wilson & Noaevcare, 1949 (Sunshine; Pumice Corp. of Ceo. spar, scrap mica Mesozoic granule intrusive. mica sod feldspar recovered. USBM Min. Yearbook, 1963 Arizona, Ballestrerso, Sso Several tens of thouasod inns of Keith, 1969, p. 344—345, 347, Antonio Mine Co.) E silica flux shipped in smelter. 415—4 16 Ceo. Moore, 1969, p. 461, 402 11 ABM file date Protracted

Hi. Amnle District 12S— liE— Cu, Ph, Zn, Ag, 1. Scattered, usually small, irregular, Mostly relatively shallow shafts, Jenkins it Wilson, 1920 (Tucson Mine.) 15S lIE Au, Mo (V),Lime- quartz-fisaure veins containing spotty base tunnels, sod open cute. One ma Allen, M. A., 1926 atone, aiica flux metal aulfidea with gold sod silver values. jor limestone quarry for cement Brown, 1939 00 Mao relatively small cnninct metamorphic msoufacinre. Sporadic produc Cudson, 1950 ttZ sod replacement deposits of parily oxidized tion since prior in 1900 of aome Britt, 1955 base metal aulfidea, locally containing mo 34 thoussod inns of ore cuntein— Bennett, 1957 lybdenum sod vsoadium minerals. Veins cut ing about 260 tuna Cu, 335 tuna Whiiney, 1957 complex series of altered sod deformed Cre Ph, 187 tone Zn, 27,000 oz. Ag, Colby, 1958 tecenux volcanics while contact metamor 1, 000 oz. Au,sod 17 tuna of Mu Imawiler, 1959 phic sod replacement depoaite are in lime— concentrates. Over 14 mlllinn Klnnisun, 1958, 1959 atone lenses in the volcsoica or in erratic tone of limestone used for ce Oreenstein, 1961 blocks of Paleozoic (7) limestone engulfed ment msoufacinre. Some silica Bickermso, 1962 in later volcsoics or intrusives sod usually smelter flux produced. Mayo, 1963, 1968 associated with igneous dikea. Mayo it McCullough, 1964 2. Weakly dinseminated copper mineraliza McCoy, 1964 tion in fractured sod altered Laramide in Horlon, 1965 trusive sod bordering volcsolcs. Knight, 1967 3. Folded andfaultedPaleozoic limeatonea. ABM file date 4. Quartz rich zones in vnlcsoics conteining weak sod spetty copper mineralization.

1. Arizona Consolidated mine 13S 12K No. Cu, Ag, Au- Spotty copper carbonates, oxides, silicates, Relatively shallow shafts sod Copper Handbook, l9e5, 1909 (Uncle Sam, Josephine, etc.; Ceo. sod aulfides along strongly altered shear tunnels, intermittent production USGS Min. Ree., 1905 Arizona Consolidated Mng. zones sod fractures in chloritlzed sod sil— in early 19005 of some 1, 100 Jeokina it Wilson, p. 6, P1. 1 Co., Arizona Copper Mng. W¾ idified Creinceous sodeaite sod in blocks of tuna of ore averaging about 0. 7% ABM file date Co.) dolomite cut by porphyry dikes. Cu, 2.6 oz. Au/Tsodatrace of NW ¾ gold. Probably ahilpped as emel— 17 ter flux. Table 4, Coot.

MINING DMThICT LOCATION MINERAL GEOLOGY TYPE OF OPERATION REFERENCES AND MINES T. R. Sec. PRODUCTS AND PRODUCTION

2. Battle Axe mine 14S lIE SE ¼ Silica flux, Cu—, Cloaely apaced, irregularquartz veina along Open cutworltinga. Over 14, 000 ABM file data (Catalina Mng. Co., 18 Ag-, Au- intanae ahesr zonea, containing weak and tans of smelter flux containing a McFarland & Hullinger( NE ¼ spoftycopperoxideaandaiicates, taaltered few tenth’a of a percent Cu and 19 Cretaceous andesite iowa. traces of Ag and Au abipped out in 1969 and 1970.

3. Bee Nive mine lOS log SW¼ Cu, Pb, Ag, Au— 1. Weakly diaaeminatad pyrita and chalco— Relatively shallow shafts, ad— Allen, 51. A., 1920 (Arizona—Tenopah Mng. & 5 pyrita in unaltered Cretaceoua rhyolita. ita, and pita. The amall inn— Mines Randbook, 1922, 1925, 1111g. Co., Bockeye Stain NE ¼ 2. Spotty chryaocoUa, malachite, and parily nage produced in 1925 and 1929 1926 Mng. &MOg. Co.( 7 oxidized galcna with quartz in a fracture averaged about 4. 5% Cu, 1.5% Ktaniaon, 1958, p. 96—98, zone in siicified Cretaceoua arkose. Pb and 12 oz. Ag. 110—111 ABM file data

4. Columbia mine 13S 12E SE ¼ Co, Ag Copper carbonates and aulildes in irregular, ShaDowworkings. In 1954 some ABM file data (Columbia Copper Co., Mile 30 small, replacement bodies along fracture 130 tans of ore produced, av Wide Copper Co., L. B. 0. M. zones talimestunelenses in Cretaceous ar— eragtegaboutl% Cu and 0.4 oz. Mng. Co. kose close to Larawide intrusive dike. Ag/T. 00 5. Copper Bell mine 13S lIE SE ¼ Cu, Ag, Au- Spotty copper carbonates and sulfides in 360 foot shafi and underground ABM file data (Copper Kthggnoup; MOe Wide 30 irregular, small replacement bodies along workings. Worked in 1937 and Copper Co., Beard & Allen( fracture zones in limestane lenses in Crc— 1956, producing some 90 tuna of taceous arkose close to a Laramide tatru— ore averaging about 4. 6% Cu, sive dike. 1. 1 cc. Ag/T and a trace of Au.

6. Copper King mine 13S 12E No. Cu, Ag, Au- Copper carbonates, chalcopyrite, and pyrite 400 foot incline shaft and under— Mines and Copper Handbook, (Copper King group; Mile Wide Ccc. wilhampfflbole and garnet in small replace— groundworktags. Active mainly 1918 Copper Co., Cambell & 31 ment bodies, controlled largely by fracture in 1917—1918 and in 1943. Total Jenkins & Wilson, 1920 Vreeland( intersections, in limeatane lenses in Crc— production was some 1, 400 tons ABM file data taceousarkose. Muchfsultingandfracturing of ore averaging about 6% Cu, and intrusion by Laramide quartz monzonite 0. 5 oc. Ag/T and a trace of Au. dikes.

7. Gould mine 13S lIE W. Cu, Ag Copper sulfides, pyrita and minor copper 350 foot shaft, tunnels, and Copper Handbook, 1907, 1908 (Gould Copper Mng. Co., Cen. carbonates with quartz, epidote, and garnet underground workings. Pro— Jenkins & Wilson, 1920, p. 6, Pioneer Smltg. Co. ( 31 in contectmelamorphosed limestane lenses duced tatennittenily from 1907 16, P1. I inCretaceous arkosewhere cut by a fissure to 1912 and in 1940. Total pro- ABM file data zone and intruded by Laramide quartz latite duction was some 1, 500 tans of dikes, ore averaging about 2% Cu, and 0. 1 oz. Ag/T.

8. Isabel mine 13S lIE SW ¼ Pb, Cu, Ag Partly oxidized lead and copper solfides in Shallow shafta and open cota. USGS Miii. Rca. 1919 (Bonanza Park, Sweetwatar; 28 irregolar bodiea in metamorphosed and dia- Worked in 1919 and 1962. Total Jenkina & Wilaon, 1920, p. 6, Boneune Park Mug. Co., Nfl 30rW4 exotic Palaoaolo (7) llmiatoneblool produoticuwaa come 170 tuna of 13, P1. I Iweetwebr Mug. Co.) 33 naharedand fnoturedCrebcauuavoluan- ore avenging about 3% Pb, 1% AEM me den Ice. Local lareade dile lntuilooa. Cu, and Ice. ALIT.

H’

i_:

1 Ii

— LFHJ4Qj%

I

h

-- i

- —

I 89l

h

I L 11t H; ii 1°1

i

r

--

L

I

98O1OC I

99

9

-

[

ji1Jf --

eij

qg

...... L!

I I I II

‘‘

4-•k-I-

—4% —;z6=4_b&J -*------r----- ;j2xx[

1

F1’r1T 6

%±Zi Lt

— —

uju umi .1 •icvinoo aS!G nia UJ S o xopuj d13m

____

______

______

______

EXPLANATION

Quaternary-Tertiary alluvium (Qs QIs Ts)

H i, Quaternary-Tertiary volcanics (Qs, QTv,Tv)

Tertiary intrusives (Ti) L

Tertiary sedimentaries and volcanics (Is, Tsv, Tv) vr i ) Mesozoic and Laramide intrusives (Mi, Li) ffjJ 1IJ Mesozoic and Laramide sedimentaries, volcanics, and metamorphics (Ms, Mv, Msv, Mm, La, Lv, Lsv, Lm) [liJiJi

Paleozoic sedimentaries (P)

Precambrian metamorphics and intrusives Cp€m, pCi)

Explanation of Geologic Symbols

86 Figure 2. Ajo and Growler Districts. (Bold numbers refer to mining properties listed in Table 4).

87 88

•(J7 0I(11 UT i° SoWTodoJd ujupii o ijoi saoqwnu pToH) WI1STG 010WV OJfl.LI -

T1JZA] -

— r •.•.. !HU A

°d (4 JMO.LII \ 9 so

\ L

I I HI - - ‘ EJE I d -Z71+’ N êIS i—r-—i A 3515 . J....::.. Figure 4. Arivaca and Cerro Colorado Districts. (Bold numbers refer to mining properties listed in Table 4).

89 Figure 5A, Baboquivari District, South Section. (Bold numbers refer to mining properties listed in Table 4).

90 Figure 5B. Baboquivari and Coyote Districts, North Section. (Bold numbers refer to mining properties listed in Table 4).

91 Figure 6. Cababi District. (Bold numbers refer to mining properties listed in Table 4). Figure 7. Cimarron Mountain District. (Bold numbers refer to mining properties listed in Table 4).

93 Vj IAN RESERVATION Os — I LOS.: •1 ,..-,.. A._ —n ‘I

.36 .31 f

R4W R2W Figure 8. Gunsight District. (Bold numbers refer to mining properties listed in Table 4).

94 ______

I4ES

LF: It: r flE fI ; 11”I :31 O& H_ s P - 6 ! E2L1 gMH

:36 2,4, SANTA RITA 30 ‘ I+4-4I q 4i 9.10 It : ..,r . .- EXPERIMENTAL RA GE ; -z -4 Ols f WILDLIFE AREA ___ -t

Figure 9. Helvetia-Rosemont, Empire, Greaterville, and Old Baldy Districts. (Bold numbers refer to mining properties listed in Table 4). in

listed

properties

96

District.

mining

to

refer

Montezuma

10.

4).

numbers

Figure (Bold

Table ______

> V ‘ R 15 E. 7/J//4&’- Li 1 R 6 E. R. 17 E. — ]__.//( 4 ———s -i- -t- — — — — — 1 6 jJ%_____

/ Mv M / 4 /

/ f 8__ M 1) OTs -

A

Figure 11. Oracle District. (Bold numbers refer to mining properties listed in Table 4). R 0 E R lIE RIZE

S AN X A V I £ R4AN

T IS 1— S. : [::

CLI 36 :31::: ( 36 31i LI l pCI

1:: 6. V4 #> 46i.:. 56 9QSan Xas er

I:::. ‘ :\‘ JT

>1 L’ 4

5 LI lU : ‘3 5 3’ i: I 36 31 ‘.Li” ;.: Mi 7—— 1i.! Figure 12.IiPima and Papago Districts. (Bold numbers refer to mining properties listed in Table 4). ______

“31 L H y 86 Ls Li4

31 3fc’f,.” 13, t ° I ii Tv — QU]OTO\ -

61 I -—L”-- -— +-—— I i 7 1 -4- H----——+ - H - . I I :.‘ i Li 5

I iii I . ‘ . Sii -— ———i-———1—t — I r_ _( rI 1 - “o I •::•.•‘ 31 31 i ‘:. 31 :t.. 1

I I

I I QTv v

. I 61 I I I .j •1 — _I_ — —— I T L r Ts -,:-.. 1. I T I —— I f 1 Mv I L__L_-4- —- .- ——I——-I-—— 1 . . I Figure 13. Quijotoa District. (Bold numbers refer to mining properties listed in Table 4).

99 Figure 14. Silver Bell and Waterman Districts. (Bold numbers refer to mining properties listed in Table 4).

100 ioi

SIIOM

Ag/T.

uz. 0.5 and Cu 1% about ing

& Harris)

Strong

averag

tens 3,700

some

putwas

stock. porphyry

Co.,

Copper

Arizona

Tucson

out—

Total

1959. through

in 1956 (7)

Laramide

mineralized and

hracciated,

Co., Mng.

Queen

Co.,

Papago

data file flux ARM

of smelter

and to

1934

1917

altered,

weakly a in

fractures

along and

12

p.

Mng.

Saginaw

group;

Amole 109—110

1958,

Einniann,

from ore

copper of

production

veins

in

quartz

oxides mnlyhdenum

minor

Cen.

p.

Hill,

Gold

Hill,

21 (Saginaw

1920,

A., M.

Allen, Sporadic

cut. open and

Tunnel

with

malachite

and

cuprite

Disseminated

(Mo) Au Ag, Cu,

W.

lIE 1SS mine Queen Papago 14.

Au/T.

Ag/TandO.060z. 2.Suz.

brecciatlon. and gouge

fault

strong

Cu,

0.7%

2.2%Pb,

13%Zn, bout with Associated porphyry. gracitic

trusive

a-

averaging

ore of

tens

2,300

In and Laramide of

arkose

zone

contact the

date

file ARM

some to

amounted

production

tal along also

and arkcae

Creteceoua in

lenses

Co.)

107—109 104—105,

101—102, To

1954. through

1918 ly

from

limestone

in

deposits

replacement

vein—like

11

Copper

p. Arizona

Tucson

Co.,

98—99,

95,

1958, Kinniaon,

intermittent

Worked

workings.

quartzoae,

irregular in

pyrite

and

copyrite

Au

Can.

Mng.

p.

Saginaw

group;

(Amole

20—21

1920,

A., M.

Allen,

and

underground

shaft

incline

chal—

galena, aphalerite,

oxidized Slightly Ag, Cu,

Ph,

Zn,

E 12E 1SS mine Verde 13. Palo

Au/T. 1 oz.

0. and

sive.

AWT

oz.

1 Mo, 0.3%

Zn, 0.6% intru porphyritic Laramide a with ciated

1%

Cu, 4%

Pb,

about

eraging and asso

andeaite Creteceous cutting zone

Co.)

av

ore

of

tens

of

5,700 some

a fracture along orebody faulted

and

leasing,

1111g.

Ore

Tucson

Co.,

Mines

date file

ARM tetal

a with 1947,

through

1916

dipping,

steeply in a gangue,

calcite

and

Reilly Co.,

Separation

Ore

I

P1. 16—17,

from

sporadically

Produced

quartz and

vanadinite,

and

wulfenite

spotty

(V(

Au

Ag,

9

p.

international

Randolph,

(Col.

6,

1920,

&

Wilson,

Jenkins

workings.

underground

Shsftand

with

aulfidea metal

base oxidized

Partly Mo,

Zn,

Cu,

Pb, Ceo. 12E 13S mine Yuma Old 12.

file date ARM Axe mine. Rattle with ed

115—116 103—104, includ— production in 1969—1870

p.

100,

94, 1958, Kinnilon, Au/T. oz. 04 0. and oz. Ag/T

1.2

Hullinger)

&

McFarland

I

P1. 5% Cu, about averaging 67

tens

C

p. Cc.,

Copper

Consolidated

6,

1920,

Wilson, & Jenkins

tetaledsome 1936

and

1907—1909

andesita. Cretecenus altered slightly

Tucson Co.,

1111g. &

1913 in

production

Sporadic

cute.

cutting veins

quartz lansing

drusy,

banded,

19

Mng.

Pueblo Old

Sabo;

(Quien

1912—

1907,

Handbook,

Copper open

and

tunnels shaft,

foot

517 in

chalcocite and

silicates

copper of Pockets ¾ Au—

Ag,

Cu,

NE lIE 14S mine Old Pueblo 11.

Au/T. oz.

0.1 and Ag/T, oz. 10 Pb, 0.3%

Cu, 1% about averaging of ore

date file

ABM

tons 150

some

been baa ductioo

rhyoltte. in

Cretaceous

stderite oua

p.

112—113

101, 1958,

Etenison,

Totelpro

1937—1938.

and

1923, manganifer—

of massive vein fisaure

narrow

33

I

P1. in 1920—21,

production radic

a

in

jasper

and

hematite,

barite,

argerite,

(Ba)

Cen.

p.

Pellegrin( Bat;

(Old

6,

1920,

Wilson,

&

Jenkins

Spo

workings. tunnel

and

Adit

cer—

argentite,

cerosite,

oxidea, Copper Au

Pb,

Ag,

Cu, E. 13E 14S mine Old Misaion 10.

Au/T. oz.

data file ARM 1.1 and

Ag/T, L3oz. Pb, 0.2%

intrusion. porphyry granite

The.)

Mines,

Metal

111—112 Cu,

averaging4% tons

100

at ed

Laramide a to close

rhyolite and

arkose,

Southweat

p. Co.,

Copper

99, Tucson

95—97, 1958,

Kinniaon,

estimat

production

Total

1950.

andeaite,

Cretaceooa altered

and bleached

Arizona

Co.,

Copper

Hermosa

1922

Handbook,

Mines te

1920

from

sporadically

and

cutting

veina

quartz

interaeeting

with

Co.,

Mng.

p. Saginaw

1

Margarita;

P1.

6,

& Wilson,

Jenkins

in

1890’s

first Mined

workings.

aaaoctated

Ienaes and

maaaes

amall

in pyrite

Can.

p. Santa

Tucson,

(Arizona

22—23

1920,

A., M.

Allen,

underground and

shaft foot

750

with aulfides

lead

and

copper oxidized Partly Au

Ag, Pb, Cu,

E. 13E ias Ivy 9. mine May

PRODUCTION AND

PRODUCTS

Sec.

H.

T. MINES AND

REFERENCES

OF OPERATION

TYPE

GEOLOGY

MINERAL LOCATION DNThICT MINING

4, Cont. Table anu Spotty oxidized lead and copper mineraliza Shallow stunts, tunneis, mine 14S 131 SW ¼ Pb, Cu, Ag, Au sporadically P1. I 15. Pellegrln tion along a fracture zone in Cretaceous open pits, worked Old Padre, Starr; 33 1938, pro ABM file data (Arizona, rhyolite. from 1918 through Peilegrin, Arizona Mission ducing some 71 tons averaging Mines Co.) about 3% Pb, 2% Cu, 6 oz. Ag/T and 0.2 oz. Au/T.

Shafts, pits, and minor under Allen, M. A., 1920, p. 20 Zn-, Pb-, Sparse, spotty, partly oxidized, base metal 16. Saginaw mine 15S 12E NE¼ Cu-, workings. Worked prior Jenkins & Wilson, p. 6, P1. I Ag-, Au- sulfides along fissure zones in limestone ground (Saginaw Mng. Co., Tucson 11 to 1900 witha possible 100 inns Tenny, 1927—1929 lenses In silicifled Cretsceous arkose. 107 Arizona Copper Co.) NW of low grade ore produced. Kinnlson, 1958, p. 93, 102, 12 ABM file data

produced ABM ifie data Small local replacement pocket of argentif- Shallow pit. In 1922 Snyder Hill prospect 15S 121 W. Pb, Ag, Au ore av 17. ferous galena, silver halides, and barite in some 15 tons of picked Ceo. 301 oz. Permlan limestone. eraging about 5% Pb, 3 Ag/T, and 0.01 oz. Au/T. ABM file data lense of lead-zinc carbonate as re- Shallow workings, In 1944 some Hill prospect 12S lIE NE ¼ Pb, Zn, Ag Small 18. Twin In Paleozoic limestone near a 40 toes of ore averaging about 34 placement Ag/T Laramide granitic intrusive. 4% Pb, 4% Zn, and 1 oz. was produced. than 14 Wilson & Roseveare, 1949, p. 13 Foldedand faulted Mississippian Escabrosa Quarry operation. More Twin Peaks quarry 12S lIE So. Limestone and rock mined for Keith, 1969, p. 389, 390, 397 19. and Pennsylvanisn—Permian Naco Group million tons of (Arizona Portland Cement Ceo. shale ABM file data limestones. cement manufacture. Co., Division of CalifornIa 26 Portland Cement Co.) C c,z Wilson, 1941, 37-39 and precious metal mineral- Over 100 small mines and pros- p. 20S- 9E Au, Ag, Pb, W, 1. Spotty base Dale et alia, 1960, p. 98-105 IV. Arivaca District Irregular quartz and quarts—cal- poets have been worked since San Lois 23S 101 Cu, Zn (Hg, F) ization in Wilson, 1961, 78-80 (Las Guijas and veins cutting partly metamor- Spanish Colonial times but no p. cite fissure Es— ABM file data Mins.) phosed Creteceous sandstone, shale, con- large sustained operations. minorlimestone, and volcanics. timated and recorded produc— glomerate, 300 and enrichment by surface weath- tine would amount to some 9, Oxidation about produced local, high—grade gold and tons of ore containing ertag oz. sil— pockets. 3, 600 oz. gold, 45, 500 silver 36 tons of 2. Irregular quartz—filled fissure veins with ver 115 tons of lead, zinc, and 250 spotty tungsten and base metal sulfldes in copper, 9 tons of Laramide granitic intrusive, tons of tungsten concentrates. 3. Small scattered gold and tungsten placer deposits. and o- ABM file data Argentiferous and auriferoua galena, sphal- Shallow shafts, tunnels, group 22S JOE 1. Au, Ag, Pb, Zn, 1941 1. Ajax mine erite, minor ohalcopyrlte, and pyrite in ir— pen cuts. From 1927 inTo Gold Mng. Ic Mllg. Cen. Cu— 200 tons of ore (Arivaca regular, lensingquartz-fissure veins cutting produced some Co., Ajax Mng. Co., Oreona & about 0. 6 oz. Au/T, metamorphosed Cretaceous sedimentary averaging Co.) SE¼ Cu, and 4% Mng. formations. Oxidized near the surface with 15 oz. Ag/T, 0.7% 5 notrecov— enrichment of gold and silver. Pb. Considerable Zn ered.

Wfl of inns nref 1555

50 about and Cu, and Pb some

Au/T, oz. 9 0.

about

averaging

intrusive.

granule

Laramide in a

near

Cummings) shipped, Lowell,

of

ore

tons 199

Some

andes—

Cretaceous in

zone

afissute

in face ¾

NE

Finlyson,

Aver,

Williams, 1941. to 1930

from

production

sur

the

near (?)

chlorides

silver

and gold

4

Tonqulta;

data

or We

ARM

(Tunquepata

ininrmitinot

workings.

Shallow

free

veinwith

quartz

oxidized and

Weathered

Ag Au, 9E¾

9E 239 group mine 8. Border

andesita. Cretaceous cutting

produced.

vein

quartz-fissure

brancbing and

lenaing

data

file ARM

concentrains tongaino

of picked a

in

chalcopyriin

and

sphsleriin,

galena,

p.

104

1960,

aSia, et

Dale

lbs. 000 10,

some

1930’s in lain

pyrlin, scheelita,

minor and

ing

woliramita

Cu-

Zn-,

p. Pb-,

13

39

1941,

Wilson,

workings. adit (Fernstrom)

Sballowshsfland

contain

oreshooin

Irregular

spotty,

Small, Ag-,

Au-, NW¾ W,

9E 20S group mine Gold 7. Black

oolrenovered.

Zn Ph. 1%

Coand

oxidationandweathering. by

silver

and gold

trace Ag/T,

oz. 8

0. Au/T, oz.

of

enrichment

surface

Near

intrusive.

in

5

0.

about averaging

ore

of inns

grsnui- Lsramide in ohslcopyriin

and

erita,

140

some

produced 1940’s into

sphal—

galena,

argentiferous and

auriferous

Cu-

8

Walsh)

data Co., file

ARM Mug.

1930’s (Backbone

From

workings. Shaft

spotty

with

lenses

quartz-fissure

Irregular

Zn-, Pb, Ag,

Au, Ceo.

1OE

213 mine Backbone 6,

Ph. 1% and Cu, trace

Ag/T,

oz.

silver. and

gold

1 Au/T,

oz.

0.9

about eraging

of

enrichment surface

Near

intrusive.

nile

sv

ore of inns 65

some of

total

gra—

Laramide cuffing

fissures

along

fides

Walsh)

Jacobs,

a Co.,

1411g. produced

1916

and

1931-1934,

aol-

metal

base

spotty

and weak,

oxidized,

Cu-

Zn-,

5

&

Mug.

data

We

Calzooa ARM

in (Chapman;

workings.

shallow

Relatively with

fissures

along

veins

quartz ¾

Irregular

Pb-,

Ag, Au, SE

1OE 215 mine King Arlvaoa 5.

time.

C

that since ozs. 100 some and

1900, in 1750

produced, silver

clay,

Considerable

minor with

gold of

ozs. 1, 000

bedrock. or false true

near or

at

washes

9

a

few

Probably

available. wainr

and gulches various in

and

slopes, ¾ fluent

NE

when

except

used

washers dry

pod— on

nuggets few

with

gold

finelydlvided

p.

10

78—80

1961, Wilson,

with

workings scattered

Small

dislribuind,

irregularly

with

gravels Placer

¾

Ag— Au,

NW 215 placers gold Creek Arivacs 4,

Zn. 1% and Pb 4%

Co.)

Mug. Arivaca Co., Cu,

trace

Ag/T, oz. 6 Au/T,

surface.

the

near

enrichment

VogelMog.

inc., Mines,

oz. Mba S 0.

about

averaging ore of

and

Oxidation

intrusive.

graoltic

Laramide

Co., Mug.

Oreona Co.,

Mug. tuna

1,400

some

producing

1956 in

fractures on veins

quartz

in irregular

20

Amado

Tiger;

thru Wblpperwell, 1921

from

mainly Worked

pyrita

and

chslcopyrlte,

minor

sphalerlte,

Cu-

Con.

data file Oreona,

ARM

(Rosebud,

operations.

tunnel

and

Shaft

galena,

aurierous

and

argeotiferous

Spotty

Zn,

Pb, Ag, Au,

No. 10E 21S group mine Amado 3.

notrecovered. Zn 7% Pb. and Cu

0.5% Ag/T, 11

oz. Au/T,

oz.

surface.

near enrichment

0.3

about averaging

produced,

and Oxidation

intrusive. granitic

Laramide

ore of

tonnage small

with

1940’s cuffing veins fissure

in

quart-filled pyrtin

and Mines)

1930’s in

production radic

chalco

minor

and

sphaieriin

galena,

cmos

Cu

12

Gold

data

file Albatross King;

ARM

Spo (Gnome

workings.

shaft

and Tunnel

aunt—

and

argentiferous of

Irregularlenses Zn, Pb,

Au, Ag, Nfl

9E 215 mine Albatross 2.

PRODUCTION

AND

PRODUCTS

Sec. R.

T.

REFERENCES MINES AND

OPERATION OF TYPE

GEOLOGY

MINERAL

LOCATION DISTRICT MISThIG

Coot. 4, Table nnauow wortungs. ifi 19505 AIiM Die data (Golden Star, Geld Rim, 9, Zn— ered, irregular quartz-fiasure veins con produced some 400 tens of ore Rebecca, etc.; Goon, Lim, & taining spettybase metal auffidee, in Lara avernglng about 0.60 nz. Au and Seth, The Richard M. L M. 16 mide granitic intrusive. Near surface en 7 oz. Ag/T, 0.4% Cu and 0.2% Co.) richment. Pb.

10. CeWeje (Cottontail) mine 22S 1OE SE¾ Au, Ag, Pb—, Oxidized and weathered, spotty, base metal Shaft and open cut weridnga. in ABM file data (Boyd & Torrey, Byfield Mng. S Zn—, Cu— aulfides with some free geld near the sur 1938—1939 produced some 300 &Mllg. Ce.) face, in a irregular, lenaing quartz—fissure tens of ore averaging about 0. 2 vein cutting metamorphosed Cretaceeua ez. Au and 0.4 nz. Ag/T, trace sedimentary formations. Cu and 0.4% Pb. Probably sold as smelter flux. 11. Contact mine 22S 1OE No. Au, Ag, Pb, Zn—, Oxidized and weathered, irregular quartz— Shaft and open cut operations. ABM file date (Old Bucket, Rusty Red, Tern Cen. Cu— fissure vninswith apettybase metal aulfidea, Probably worked prier in 1900 Rigg; Catas, Carter, 8 cutting metamerpheand Cretaceoua and and in 1934—1939, producing Andersen) imentary formations. some 100 or more tens of ore averaging about 0. S on. Au and 2 on. Ag/T, 0. 3% Cu and 3% Pb. Zn not recovered.

12. Easter mine group 22S SE W. Au, Ag, W, Cu, Series of narrewand discontinuous, oxidized Pits, trenches and npen cuts. in Dale et alia, 1960, 104—105 (Brouse, Sinekwell p. & Cen. Pb-, Zn- and weathered, quartz—fissure veins con 1939—1942 produced some 15 ABM file data Cummings, Casey, Den 14 taining aparae base metal suffides, spotty inns of ore averaging about 1.5 Lieherman Enterprises, the.) E. anheelite and minor free gold, cuffing Lam— nz. Au and 4. 5 oz. Ag/T. 2.3% I-I Cen. mide granitic intrusive near contact with Cu anda trace Pb. in 1951—1952 0 15 Cretacenus sediments and volnanica. some 2,700lbs. of hand picked, Cs’ high grade tungsten ore and con centrates produced. 13. Edwards mine 22S lOE No. Au, Ag, Cu, Pb—, Oxidized and weathered quartz lenses with Shaft and tunnel operations. ABM file data (Mother Lode) Cen. Zn— free geld and silver chlorides (7) near sur Werkedpriorin 1900 and inter face and apeftyhese metal aulfidea in depth, mittently 1928—1940, producing aiengtracture zones in metamorphosed Cm— ever 100 inns ef ore averaging inceeus sedimentary fennatiens. 4 on. Au and 24 oz. Ag/T, 1.6% Cu and 0.6% Pb. 14. Good Enough mine grnup 20S lOE NW¾ W, Au, Ag, Cu-, Quartz lenses containing irregularly acai— Tunnel operatlona. Worked o— Wilson, 1941, 39 (Seth p. and Eaperanza groups; 31 Pb- tered wolframite and miner scheelite, and riginatly for gold and silver pri Dale et alia, 1960, 99—100 Seth, Schwartz, p. Don aparae oxidized copper and lead mineraliza or to 1900 and sporadically for Shethh, 1966, 1970 Liehennan Enterprises, the., tion, with free geld in weathered surface tungsten in 1940’s and 1950’s. ARM the data Lemas, Zappia areas, in fracture zenes inCretacenas vol Probably produced some 50 tons canic breceta. of Au, Ag and Cu ore and ever 40, 000 lbs. of W03 concen trates.

15. Las Guias mine group lOS SE W, Au—, Ag—, W% Irregular, lensingquartz—fissureveinsenn— Tunnel, pit and open nut opera Wilson, 1941, p. 37—39 (Immense lodes, Grand lodee, 25 Cu-, Pb—, Zn—. taming wolframite, hubnerite, and seheelite tions. Originaily worked prior Dale et alia, 1961, p. 102—104 General Electric; Whitcnmb & E;I Mn-, F- with miner ehslcopyrite, bornite, pyriin, to 1900 for gold and ailver and Shethh, 1966, 1970 Assec., Tungsten Alleys 26 galena, sphalerite and maguetite and their intermittentiy since ‘NW I for ABM file data Corp., Ore Metal & oxidation products. Enrichment of geld in tungsten. About 2,000 inns of Zngineering Corp., South weathered surface. Psilcmelane and fluorite gold—silver—copper ore and over western Ore Corp., General also present. Veins occur in sericitized and 155, 000 lbs. of WO3 concen Electric Ce., Tungsten Meg. fractured Laramide granitic intrusive and trates are estimated in have Corp., Femnstrom Mng. Co.) in Creincenua volcanic breccta. Sometimes been produced. associated with basic dOzes. Table 4, Cost.

MINING D1$ThICT LOCATION MINERAL GEOLOGY TYPE OF OPERATION REFERENCES AND MINES T. R. Sec. PRODUCTS AND PRODUCTION

16. La Guijaa, gold placers 20S 9E 25 Ao, Ag-, Hg- Generally very fioe gold with few nuggets in Dry and wet placer operationa WINOs, 1915, p. 10 )Durzano and Pesquerte 20S 1OE 30, gravels onpedimentslopes, old terraces or from prior in 1900. Reworked Allen, M. A., 1922, p. 10—11 gulches; New Venture Placer 31, mesas”, and invarious gulches and washes intermittentlyin 1930’s andesr Wilaon, 1961, p. 78—90 Meg. Co.) & along Las Guias Wash at or near true or ly 1940’s. Total production es ABM the data 32 false bedrock. Often admixed with clay. timated at about 1, 000 oz. Au 2lS 1OE S with some Ag.

17. Las Guias tungsten placers 20S 9E 12, W Wnlframite and scbeelite, with quartz, in Dry and wet placer operationa. Wilson, 1941, p. 39 23, alluvium and stream gravelsbelnwbmgsten- A few inns of wnlframite con— Dale et alia, 1960, p. 105 24, bearing quartz veins and lenses in the Las centrateaproduce4 mainlydur— 25 Guias Mountains snd the Black Gold area in ing fl L the north.

18. Long Shot mine group 22S 1OE Ceo. Ag, Au, Pb, Cu, Irregular quartz-fissure zone with parily Shaft workings. intermittent AEM file date (McCarthy, Fullerton, Borris 5 Zn oxidized base metal sulfides in metamor production since early 1900’s of & Sons) phosed C retaceous sedimentary formations. some 100 inns of ore averaging about 21 oz. Ag/T, 5% Pb, 1% Cu and trace Au.

19. M. C. M. mine group 22S lOE SE% Ag, Pb, Zn, Partly oxidized argentifernus galena, chal— Relatively shallow operations ABM the date (Guadalupe group; MCM Mng. 5 Cu, Au- cnpyrite, sphaierite, and pyrite in lenstng worked intermittently from pri or to 1900 in 1913, producing C & P411g. Co., Rowcroft, quartz-fissure veins cutiingmeinmurphosed 01 Goadalope Meg. Co., Leda Creteceous sedimentary formations. some 100 or more inns of ore Mines Coosoildated) averaging about 01 oz. Ag/T, 1 oz. Au/T, 10% Pb and 4% Cu.

20. Moore mine 21$ 9E NE¼ Cu, Ag, Au Oxidized copper mineralization in fractured Open pit and leaching operation. ABM the date (Draham Enterprises) Creteceous sediments. in 1967 produced over 100 inns of ore averaging about 2% Cu, 4 oz. Ag/T and trace Au.

21. Oceanic mine 215 9E Cen. Au, Ag, Pb-, Weaihered and oxidized quartz-fissure veins Shaft and tunnel operations. ABM the date (San Lois; Oceanic Gold Meg. 27 Zn—, Cu- with spotty base metal aulfides, enriched in Worked intermittently from late Co., Ish, San Lois Meg. Co., gold and silver near the surface, cutting 1800’s in 1936, producing some Simmons) Creinceous sedimentary beds close to a 2,000 or more inns of ore av Laramide granitic intrusive. eraging about 0.5 oz./T in both Au saId Ag and minor lead and copper.

22. San Loin Wash gold placers 215 9E 27 Au, Ag- Generally coarse and angular gold particles Worked sporadically by wet and Wilson, 1961, p. 79 34 inspofiyplacerdepoaiteofgravela and aflu- dry methods, mainly in the ABM the date & vium on benches between waahes on a dis— 1930’s. Some 50 oza. Au recov— 35 sectedpedimentcutonCreteceous sedimen— ered. tery and volcanic beds. Few boulders hut cosaiderable clay.

S. Ian I*de Wish tooptea IN IX Ca W Ipo eM lrrep3er po*ete of woiframite Worked by dry washer. A few Dale it alto, 11101 p. 108 $aoen 14 end eoheUW in wish eIhMel. tens of poeMs of W01 oennso- ABM file date t,otmm nvn.lrnmel to ,nliI—1110’e. • S%” ‘ “‘tV (RuUadgm, Torny & Ropn, B Cu bum mab] midftdn, aedthud mud rnthmnd mb1 workid origiumfly In only Atwood, Byfield Mng. & Mllg. near the aurface with enrichment, cutting 1900’a and aporadically from Co.) metamorphoaed Cretaceoua acdlmeetery 1930 thru 1940, producIng aome formatlona. 100 boa of ore averaging about 0.5 oz. Au and 15 oz. Ag/T, 5% Pb and 1% Cu.

25. VindIcator mine group 205 SE SW¼ W, Cu—, Au—, Zones of small, Irregular, atringera, veina Shallow abaft and open cut work— WIlson, 1941, p. 39 (Stewart—Fernatrom, 25 Ag—, Pb- and lensea of quartz with apottywulframite, inga. Prospected originally for Dale et alla, 1960, p. 100—101 Carboloy group; Cleveland echeelite, pyrite, chalcopyrile, and galena Au and Ag and from WW I thru Sheikh, 1966, 1970 Tungsten Co., Fernatrom, along fracture zones in Laramide granitic 1972 for tungsten. Over 31, 000 ABM file date F. H. & R. Mng. Co., intrusive at contactwlthCretaceoua volcanic lbs. of W03 concentrates pro Carlaon, Whliney) breccia and blotite minette dike. duced.

V. Baboqulvarl District 17- 7 Au, Ag, Cu, Pb, 1. Gold—bearing quartz-fissure veins and Numerous small, shallow mines Wilson ci alia, 1934 (Rev. (Babequivarl and Quufflan 21S SE ---- Zn, Mn, W, Mo stringers, locallywith calcite, pyrlte, man and prospecta but few major 1967), p. 179—181 Mins.) (F, Be) ganese and Iron oxides, and apotty molyb producers. Total production Wilson, 1941, p. 39—40 in part protracted denum, cutting metamorphosed or unmete through 1972 estimated and re Wilson, 1961, p. 81 merphesed Meauzeic and early Tertiary corded as some 56,600 tens of Donald, 1959 sedimentary formations and usually asso ore containing about 173,500 oz. Fate, 1965 ciated with rhyolite, andealte or pegmatite Ag, 13, 900 ez. Au, 122 tons Cu, Heindl & Fair, 1965 dikes as well as Laramide granule to dl and 12 tons Pb. About 2,100 ABM file data oritic intrusive bodlea. units of tungatenwere aleopro i-i 2. Spotty tungsten mineralization, often with duced from some 1, 000 tons of 0 local baae metal suffides, calcium silicates, ore. A small amount of low and quartz along fracture zones inMeaezoic grade Mo produced. Small a— to early Tertiary quartzltlc or limy bode mount of placer gold recovered. adjacent to igneous dikes or intrualves of probable Laramide age.

3. Spotty and Irregular manganese oxidea In seams and veinlete along narrow fissure zones in shattered and brecciated Laramide Intrusive or sedimentary beds. 4. Local, spottygoldplacers inbenches and bars along dry washes.

1. Allison mine 188 7E Ccc. Ag, Au, Cu—, Argeetite, silver and geld chlorides, native Tunnel, ahaft and extensive on Mines Handbook, 1926 (Freenel, Chance; Allison 33 Pb-, Sin geld and miner copper and lead minerals in dergeound workings. Produced Worcester, 1931 Bros. & Wicks, Allison Gold Prutracted quartz lenses with gouge and abundaet man intermitteetly from 1890’s thru Wfison, 1934 (Rev. 1967), Mng. Co., Tom Reed Geld ganese and Ireouxides aleegfault zones cut— 1961. Tetal estimated and re p. 179—180 Mines, El Ore Meg. & 9611g. tieg tilted, metemerphesed Tertiary con corded productiee was over FaIr, 1965 Co., Tembsteee Meg. Ce. ef glomerate and sedimentary brsccla beds 47, 000 tees of ore averaging a- ABM file data Arlz., Geld Bar Meg. Co., with associated rhyelite and andesite por bout 0.22 ez. Au/T, 2.7 ez. Old Gold Meg. Co.) phyry dikes. Ag/T, and miner lead and cap—

2. Arizeea Molybdenum mine 205 7E No. Cu, Me, Au, Ag, Leesing, quartz—feldspar, pegmstitlc veins Shallow ahafta and pita. No re Mines Handbook, 1922 (Arizona Molybdenum Ce.) Ccc. Pb and dikes, contaleingspeftybase metal sal corded productiee but reported fidee and molybdeeite, cutting cearse ly operating flotation plant fur graleed Laramide graeitic intrusive. molybdenum concentrates in 1917. Table 4, Coot.

MENING DISTRICT LOCATION MINERAL GEOLOGY TYPE OF OPERATION REFERENCES AND MINES T. R. Sec. PRODUCTh AND PRODUCTION

3. Baboquivarl mine 205 7E NW¼ Mn, FeO, Cu-, Pyrolusite, psilomelane, and minor rho Trenches, cuts and shaft. About Farnham et alIa, 1961, (Black Diamond group, Red 11 Ag-, Au- donite with abundant iron oxides along nar 2 car loads of hand sorted man— p. 121—122 and Black Chief group) row fracture zones, in seams and veinleta, ganese ore shipped in 1917. in a shattered and brecciated andesite dike cutting Cretaceous sediments.

4. Berldey mine 20S 7E NE¼ Cu, Ag, Au, Pb-, Scattered bunches of oxidized pyrite and base Shallow workings, In 1936-1937 ABM ifie date (Hickey, Siebert, Chavez) 21 Zn- metal suffidea in weathered coarse-grained some 200 tons of ore averaging quartz and calcite along faultflssure In part— about 2.5% Cu, .04 oz. Au/T lymetamorphosed Cretaceous sediments cut and 6.6 oz. Ag/T shipped. by intrusive dikes.

5. Big Banana mine l7S 7E No. W, Cu-, Mo-, F- Spotty scheelite with epidote, garnet, pyrite Tunnels and open cute. In 1955 Dale et ala, 1960, p. 67—69 (Coplen, C. G. Glasscock, Cen. and minor chalcopyrite. molybdenite and and 1956 about 20, 000 lbs. of Tideland Oil Co.) 32 fluorite in narrow en echelon shoots in tungsten concentrates produced. Protracted strongly fractured zone cutting Laramide metamorphic quartzfte adjacent to altered intrusive rhyolite.

6. BIg Juanita mine group 17S 7E Cen. W Spotty scheelite with epidote, zoisite, gar Open cuts and pits. Reportedly Dale et alia, 1960, p. 70 (Brown) bor net and stringers of secondary calcite along produced shout 50 lbs. of 62% der fracture zone in Laramide quartzlte cut by tungsten concentrates. 29— numerous narrow splits dikes. 30 Protracted

7. Black Dragon mine group 18S 7E SE¾ Mn Discontinuous small lenses, coatings, and Open cuts and pits. Some 165 Farnhsm et ala, 1961, p. 117 (Coplen, Talcott, Black 15 narrow fracture-fillings of soft manganese long tons of sorted manganese Fair, 1965 Dragon Mng. Co., Arizona NE c oxides and spottypyrolusite ins sheared and ore and 19 inns of manganese Materials & Service Co.) 22 brecciated zone in Tertiary (?) rhyolite. concentrates produced in the early 1950’s.

8. EdnaJ. Placer 19S 8E 31, Au Finely divided gold in a 6 to 11 foot thick Small intermittent placer oper Wilson, 1961, p. 31 (Baboquivari Gold PlacerCo., 32 gravel bar containing abundantboulders but attons. A few tens of ounces of ABM file date Conard) 20S 8E little clay, resting on a granite pediment. gold recovered.

9. Emmett & Elgin mine 20S 7E SE¼ Au, Ag, Cu- Pockets of oxidized auriferous pyrlte and Shallow workings. In 1950 pro- ABM ifie date (Robinson) minor base metal suifides along irregular duced some 150 tons of ore av quartz—fissure zones in metamorphosed eraging about 1 oz. Au/T and Cretaceous sedimentary beds. minor Ag and Cu.

10. GIant mine 2iS 7E No. W, Cu-, Ag-, Irregular, disconnected quartz lenses with Opencutsandpite. Some 20 tons Dale et aDa, 1960, p. 78—81 (Grand Mountain; Coplen, Cen. Mo— spotty scheelite and minor copper oxides in of low grade copper—silver ore Shannon Mines, inc., 30 badlyfaulted Laramide quartzitlc beds. Lo and about 50 tons of tungsten ore Cinderra Mng. & Eng. Co., Protracted cal epidote, zolsite, and narrow aplite dikes. produced In 1957. 11. Gold Bullion mine 195 YE So. Au, Ag, Cu-, Sporadic pockets ot aurilerous pyrite with ShaSta and underground work Joseph, mm—Ibm (Basics claims, Last Chance Ceo. Ph-, Zn-, Mo- minor chslcnpyriin, gsleca, sphalerite, and ings. intermittent production in Wilson, 1934 (Rev. 1967), and Tellurium claim groups; 35 molybdenite, partly oxidized, along fault- 1880’s, from about l9lOto 1918, p. 181 Gold Bullion Mines Co., Gold 20S 7E No. fissures, bedding plane faults, and in strong andin 1939. Some 3, 100 ormore Donald, 1959 Bullion Consolidated Mng. Ccc. quartz veins or pegmatlins in metamor inns produced, avenging about Kirkemo, Anderson, & Co., Moore) phosed Cretacsous sedimentary bed, 1.0 oz. Au/T, 12 oz. Ag/T Cressec, 1965, p. 10—11 strongly altered and cut by intrusive dikes. and minor Cu and Pb. Several ABM file date 100 inns of high grade molyb denum ore shipped.

12. Gold King mine 20S 7E NE ¾ Au, Ag, Pb-, Spotty gold and silver values with minor base Shafts, adits, and drifts. Prob Wilson, 1934 (Rev. 1967), (Besls, Gold King Mog. & 10 Cu, Zn-, Mo—, metal oxides and sulfides in a quartz-man- ably originally worked prior in p. 181 Dcv. Co., Wright Mines & (Be) ganese oxide vein along a fault strucinre cut 1900 and later in 1933—1937 and Meeves, 1966, p. 59 Dcv. Co., Riddle) ting metamorphosed Creinceous sedimen— in 1963. Produced some 500 or ABM file data tsrybeds invaded by laramide granite por more inns of ore averagingabout phyry dikes. Some beryllium minerals along 1.0 oz. AuJT, U oz. Ag/T and dike contacts. minor copper and lead.

U. towana mine 19S 7E NW¾ Au, Ag, Pb-, Seriesof small, lensing, quartz—calcite fis Shallow shafts and innnels. Wilson, 1934 (Rev. 1967), (Iowans Mines, The., Beot & 36 Cu-, Zn-, W sure veins with spotty gold and silver values Probably prospected prior in p. 181 Shields) and sparse, partly oxidized base metal sal 1900 and worked subsequeoily in ARM file data fides, cutting partly metamorphosed Crc 1933—1936 and 1940—1941. Pro taceous sedimentary beds invaded by no- duced some 100 ions of ore av— memos granite and diorite porphyry dikes. eragingsboutloz. Au/T, 16 oz. Some sparse woiframite in cross—cutting Ag!T and minor lead and copper. qusrta dikes. C CD 14. Jezebel mine 17S 7Z So. W Spotty scheelite in an altered, vuggr, and Shallow shaft, adit, and open Dale et alia, 1960, p. 72—73 (Francis, Thornino) Ceo. siliceous fault-fissure zone in metsmor— cut. About 600 inns of tungsten 19 phosed Cretaceous qusrtzitic and schisinse ore produced in the mld—l950’s. Protracted formation.

15. Jupiter mine 19S 7E NW¾ Au, Ag, Pb-, Strong, coarse—gralned, quartz—calcite ils— Shafts, tunnels and underground Wilson, 1934 (Rev. 1967), (Arizona Jupiter Mines, inc., 36 Cu-, Zn- sure veins containing partly oxidized, spotty, workings. Prospected prior in p. 181 flynn, Lamp, Larrys, auriferous and argeotiferous pyrite and mi 1900 with intermittent produc ABM file data Dinnerly) nor base metal sulfides, cutting metamor tion from 1930 in 1941. Some phosed Cretaceous sedimentary beds intrud 400 inns of ore produced aver ed by granite and diorite dikes. aging about 0.7 oz. Au/T, 12 oz. Ag/T and minor lead and copper.

16. Lesjlmfre claims 21S 7E NE¾ W, y, Be- Sporadic soheellte associated with minor Shallow shaft, open cuts, and Dale et ala, 1960, p. 105-106 (Greenfield State lease; fluorite and beryllium-bearing vesuvianits pits. About 2 tons of tungsten Balla, 1962, p. 59 Carlson, Fernstrom, and in sheer zones in quartzite cut by narrow concentrates produced in 1953. Meeves, 1966, p. 59 Cummlns) pegmatite dikes.

17. Pspsgo Chief mine 20S 7E Nfl Cu, Ag, Au, Pb-, Coarsely crystalline quartz-calcite veins Tunnel and shaft workings. Wright, 1950 (Napeleoo; Grijalba, Amado, 21 Zn-, U- with partly oxidized base metal suffides a— Probably originally prospected ABM file data Verduzco, Bustsmooin, long fault-fissures cutting parilymetsmor and worked superficially in Papsgo Chief Mines, Griscom phosed Creinceous sedimentary beds cut by 1800’s. intennitteot production Mng. Co., O’dell & Mears) numerous granite and diorits dikes. Wall from early 1900’s to 1956 of rocks silicifled and serioltized. Gold and some 4, 500 inns of ore averag silver enriched in shallow oxidized and ing about 2% Cu, 5.6 oz. Ag/T, weathered zone. Minor metainrberalin as 0.04 oz. Au/T and minor Pb. sociated with copper minerals. Table 4, Cont.

MNU4G DISTRICT LOCATION MINERAL GEOLOGY TYPE oy OPERATION REFERENCES AND MINES T. R. Sec. PRODUCTS AND PRODUCTION

18. San Juan mine 17S 7E Nfl IV Dlacontlnuoua banda of apot)y aoheellte along Open cuts and adit. Some 5, 000 Dale et aIla, 1960, p. 71—72 )Coplen, Taylor & German, 30 a fault zone in Cretaceoua sediments met— pounda of tangainnoonoentraina Mountain States Uranium Ce.) Protracted amorphoaed in quartzite and hornfela. produced in 1954 and 1907.

19. Sparka mine l7S 7E SE¼ IV Spotty aoheelite along fracture zone in Crc— Open outs, adit, and shaft. Some Dale et alia, 1960, p. 70 )Juaniin #9) 30 inceous sediments metainorphoaed in 100 tuna of 0. 5% W03 mined in Protracted quartzite and horefels. the mid—1950s.

20. Veotana mine group 19S 7E 18 Cu, Ag, Au, Ph-, Partly oxidized base metal sullides ina se— Open outa, trenohea and ahallow ARM file data )Ventana Meg. Co., Arizona Zn- )Mn) rica of narrow quartz—oaloiin fissure vetna ahafta. Located in early l9OFa Mng. Co.) Protracted along a atrong fault zone cutting Creinoeous but only worked aporadloally to voloanioa and metsmorphoaed aedimenta and 1954 with a production of some Laramide intruaive, 181 tuna of ore averaging about 1.l%Cu, 2 oz. Ag/Tand 0.7oz. Au/T.

21. Yellow Star mine 17S 7E W. w Spotty aeheelite along atringers and in cay— Adit, ahafta, and open cute. Dale et alia, 1960, p. 73—74 )New Dragoon; Francia, Cen. itlea along a ahear zone in Cretaoeoua sedi— Produced aome 700 tuna of tung Coplen, Griffith, Standard 19 menta metamorphoaed in friable and gran aten ore from which 1, 100 lbs. o Tungaten Corp.) Protracted ular felapatino quartzite. of WO3 extracted.

VI. Cababi )Comobabl) Diatriet 14— 4— Au, Ag, Pb, Cu, 1. Aurfferoua and argentfferoua quartz, Numeroua acattered amass MacKallor, 1957 )North and South Comobabi 17S 6E Zn, W )Ba, V) quartz—calcite or dolomite, and quartz—bar minea and proapecta, moatly Bryner, 1959 Mina. and Ko Vaya Rilla) Partly ite veina with partly oxidized, apotty baae relatively ahallow, worked Hetudl, 1960 Protracted metal aulfidea and local bmgaten minerala aporadicallyfrom at leaatearly ABM file data along faulte and fracture zonea in a thick 1700’a to recent timea. Total aeriea of Cretaeeoua )?) andeaite iowa in— production eatimated and re vaded by Laramide granitie in dioritic in— corded aa aome 6,500 tuna of truaiona, and in the intruaive. ore containing about 3,500 oza. Au, 102,000 oza. Ag, 92 tuna Cu, 182 tona Pb, 2 tooa Zn and a amall amountof tungaten con centratea.

1. Badger mine lOS SE SE¾ Au, Ag Irregular, augary, quartz—calcite vein with Relatively ahaUow inclined Wilaon, 1934 )Rev. 1967), )Jaeger, Akron Gold Meg. 34 apotty oxidized pyrite, ahowing enriched ahaft. Only a relativelyfew tuna p. 177—178 Co.) Protracted gold and ailver valuea in iron oxidea near of ore, averaging about S on. Bryner, 1959 the aurface, aloogfracture zone in Laramide Au/T and 5 on. Ag/T produced ABM file data granite intrusive. Sericitized and aGidified in 1938. wall rook.

2. Columbia mine group lOS SE So. Cu, Ag, Au- Spotty copper carbunaina and chalcocite in Tunnel workinga. Relatively ABM file data (We)demao, Papagu Copper Ceo. an irregular quartz vein along a flaaure zone amall teenage of ore averaging Co.) 1 in Laramide granitic rook, about 0. loz. Au/T, 29oz. Ag/T Protracted aed lifE C,, nrnd,,eed Ic 1997. 3. Comobabl and Crusadermines 165 4E No. Cu, A, Au, i’n— quartz veins on rracmres atong a cuoiau ouasiuwwurasugs. rruuuueuup (Comobabi Copper Co., Ceo. of Creinceous (7) andestin porphyry volcan— to 100 tens of ore averaging a— Taylor, Pidgett, May) 25 ics with Laramide gesnitic Intrusive. Spotty, bout 0.2oz. Au/T, 24 oz. Ag/T, Protracted largely oxidized, argeotiferous copper sod 0% Cu and minor Pb. lead mineralization.

4. Coyote Hole prospect lOS 4E NW W, Cu— Coarsely crystalline, quartz veins with ir- incline shaft. Reportedly sev- Wilson, 1943, p. 40 (Coplen & O’Brien) 34 regular seams and particles of wnlfrsmtin eral hundred dollars worth of Protracted andaparsedisseminaindacheelite and chal- hand picked inngsten ore pro— copyrite along fractures in Cretaceous (7) duced. andesiin volcanics near an altered Laramide granitic granule intrusive cut by dtortin and granule porphyry dines.

5. Conqulan mine 105 4E NE Au, Ag, Cu, Pb, Partly oxidized, lensing, quartz vein with Prospected and worked in lain MacKallor, 1957 (Cooncan; Hedderman, 18 Zn spotty copper, lead, and zinc mineraliza— 1800’s with sporadic production ABM file date Picacho Mines, inc.) Protracted tion and with gold enrichment near the sur op to 1910 of some ooo inns of face, along a fracture zone in Creinceous ore averaging about 0. 5 nz. (7) andesite volcsnics. Ag/T, 1. 5 oz. Ag/T, 1.5% Cu and 1.3% Pb. Zn not recovered.

g, Desert Lode mine lBS 4E Ceo. Au, Ag Oxidized, lensing, quartz vein with weak Shallow workings. Small inn- MacKallor, 1957 (Heddenoan) 17 sulftdes along fractures cutting Creincenus nage of ore averaging 0.7 nz. Bryner, 1959 Protracted (7) andestin volcanics. Au/T, 3 oz. Ag/T produced in ARM file date 1937. u-i 1959 7. Emperor ii Duinhess mines lgS 5Z E. Cu, Ag, Au, Pb-, Partly oxidized, lensing quartz-calcttevein Shallow workings. Some 140 Brymer, I-i (Emperor & Dutchess Mines Ceo. Zn— withchalcociin andminorlead and zinc min tons of ore averaging 0.01 oz. ABM file date u-i Co.) 29 eralization along a fissure zone cutting xi Ao/T, 9 oz. Ag/T, and 5% Cu Protracted inred Laramide grasiltic intrusive. produced in 1951.

8. High Card mine 17S SE SW Au, Ag, Cu-, Oxidized and weathered quartz veins with Shallow shafts and tunnels. Bryner, 1959 (Faro Bank group; Holmes & Pb-, Zn- minor, spotty, base metal sulfides along a Worked intermittently from ABM file date Padres, Maxwell) Protracted fissure zone cutting Laramide granule rock. 1931 to 1940, producing a few Gold enriched in surface zone. tons of ore averaging about 0.9 uz. Au/T, 1. 5oz. Ag/T and mi nor Cu, Pb, and Zn.

9. Jaeger mine 17S SE Nfl Au, Ag. Cu- Series of parallel, irregular quartz—fissure 300 foot shaft workings. From Wilson, 1934 (Rev. 1907), (Akron; Jaeger, Williams, veins; vuggy, composite, oxidized, and en 1930—1943 produced some 2,800 p. 177—178 Akron Gold Mng. Co., Desert Protracted riched near the surface in geld with minor tons of ore averaging about 0. 5 Bryner, 1959 Gold Mng. Co.) silver and copper. in Laramide dioritie in oz. Au/T and 0.3 oz. Ag/T with ABM file date trusive conininingbreccinted blocks of older minor Cu. rocks.

10. Little Mary mine 105 4E SW% Au, Ag, Cu- Lensing, quartz—fissure veins, partly brec Shaft sod innoelworkings. From MacKallor, 1957 (Steppe; Stepp Bros., Como— 23 ciated, conintrdng shoots of bariin and 1917 in 1970, some 800 inns of Bryner, 1959 Pima Mog. Corp., Withers, NW¾ stringers of dolomite. Iron and copper ox picked ore produced averaging Williams, 1982, 1903 Beids Sing., Hardy, Rogers, 20 ides in upper part change to galena, pyriin, about 0.loz. Au/T, lSoz. Ag/T, Medd) Protracted chalcoctin, chalcopyrite and ruby silver in 54% Pb, 4% Cu and a little Zn. depth. Minor tetrahedrite and molybdenlin are found. Wall rock is Creinceous (7) smygdalnidal andesite flows. Table 4 Cant.

MINING DISThICT LOCATION MINERAL GEOLOGY TYPE OF OPRRATION REFERENCES AND MINES T. R. Sec. PRODUCTS AND PRODUCTION

11. Locldo claim group 17S SE NE¼ Au, Ag, Cu- Irregular, leosing, quartz—fieaore vein with incline shaft and trenches. Up ARM file date (Jaeger, Desert Gold Mog. minor oxidined copper mineralization cut in 100 inns of ore averaging a— Co.) Protracind ting Laramlde dioritic intruaive. Gold and boot 0.4 oz. Ao/T and 0.4 oz. silver enriched to oxidized zone. AgJT with minor copper pro doced in 1938 and 1948.

12. Mildreo mine group lBS 4E E Pb, Ag, Au, Cu, Leasing, crystalline quartz-fissure veios, Shafts and pits. Worked mainly McKallor, 1957 (Mildreo Mog. Co., Wayne Con. Zn (V) partly brecciated, with some dolomite In In 1132—1934 and 1940—194t, Bryner, 1959 Developing Co., Dunn, 16 Cretaceous (?)amygdaloldal andesite flows. producing some 460 taos of ore Williams, 1962, 1963 McCaoghy, Sowlee) Protracted Oalens with mthor bornite, chslcoclte sad averaging about 7% Pb, 12 oz. ARM file date ruby silver occur in pods end lenses with Ag/T, 0.2 oz. Ao/T and 1.6% mloorpyrlte, tetrahedrite, sphalerite, mo Cu. lybdenite and vseadenite. Deposii oxidized nesr surface with enriched gold values.

13. Old Timer mine lBS 4E SW¼ Ag, Cu-, Ao Series of overlapping quartz-dolomite vein- incline shaft and pit. Worked MacKaltor, 1907 )Rodolph, Picecho Mines inc.) 3 like lenses containing native silver sad spot 1946-1949 producing a few ions ARM file date Protracted ty chslcocith and pyrite, oxidized oesr the of about 26 oz. Ag/T and minor surface, in fracture zone in Cretaceoos (71 Co and Au. andesite flows.

14. Picacho mine lBS 4E NW¼ Ag, Au, Cu-, Faolind, crysinDine quartz veina with ml Shaft and pit operatiooe. Worked Copper Handbook, 1910-1911 (Cahoabi, Cababi; 9 Pb-, Zo nor milkyqoartz, calcite, and siderite, with prior in 1900’s and sporadically Mines Handbook, 1922 Bustemante, Ehreoberg, Protracted gouge sloogveiowalla, in a majorfaolt zooe up to 1960’a. Produced at least MacKallor, 1957 Jaeger & Haleishd, Francisco cutting Cretaceooa (7) andeaite flows and 500 inns of ore averaging about Bryoer, 1959 Padrea, Choate, Cababi Mog. invaded by andesite and felsic dikes. Irreg 250oz. Ag/T, 0.3 oz. Ao/T and ARM file data Co., Picacho Mog. Co., olarbaae metal and Iron oxides and sollidee. minor Co and Pb. Bartlett, Redhead) Spotty rich ailver values, particolarly in oxidized zone.

15. Sherwood mine 16S SE Nfl Cu, Ag, Au- Partly oxidized, quartz—calcite veina with Shaft worldnga. Sporadic pro— Rryoer, 1959 (Reilly Lode, Green; 31 apotty pyrite, chalcopyriin, bornite, and doctloo 1917—1927 and 1952— ARM file date Anderson, Sherwood Copper Protracted chalcoclin along a fault zone cothog Lara 1953 of a few teoa of inns of ore Co., Leonard, Doffy) mide dioritic in quartz moozooittc intrusive. averaging about 10% Cu, 37 or. Nigh silver values 10 oxidized zone. Ag/T and minor Au.

16. Silver DoDer mine 1SS 4E Ceo. W Irregular cryatelline quartz and berlin vein Shallow workings. A amall a— Wilaoo, 1941, p. 40—41 (Thngaino King; Kyriek & 34 with acattered and spotty wolframite and mount of hand picked tungsten MacKallor, 1957 Bartlett) Protracted acheelite cutting Creteceoos (7) andealte ore produced 1939—1940. ARM file date flowa.

17. Silver Giant mine lBS SE Nfl Ag, Cu- Oxidized, quartz veinwith apetty copper and Shallow workings. A few tuna of ARM file date )Rhrada & Holmea) 10 ailver values cutting Laramlde qoarte moo- ore averaging about 19 oz. Ag/T Protracted zoom introalve along fracture zone, and minor copper produced in 1947. (Silver Queen Consolidated 4 Pb- dolomite stringers and spotty pyrite, chal— radically since early 1910’s to ABM file data Mng. Co., Bartlett, Protracted copyrite, and galena. Ruby silver occurred 1950’s, producing some l25tons Luofboro & Nelson) in oxidized zone. of ore averaging about 28 nz. Ag/T, 1.6% Cu, 0. 1 oz. Au/T and minor Pb.

19. Sun-Gold mine 165 41 So. Au, Pb, Ag, Zn, Irregular, partly oxidized, quartz vein with Shallow shaft operations. Work Mackallor, 1957 (Sun Gold Mng. Co.) Cen. Cu dolomite stringers and spottypyrite, galena, edsporadically 1949—1952, pro Bryner, 1959 15 chalcopyrlte, sphalerite and ruby silver a- ducing a small tonnage of ore ABM file data Protracted long strongfracture zone cutting Cretaceous averaging about 3.7 oz. Au/T, (?) andesite flows. Pockets of high grade 11% Pb, 8 oz. Ag/T, 3% Zn and gold values. 1% Cu.

VIL Canada del Oro District uS 14E ---- Au Minor amounts of placer gravel along Canada Minor placer operations from U.S.G.S. Min. Res., 1912, (West side of Santo Catalina del Oro and tributary washes draining off 1700’s and probably not more pt. 1, p. 259—260 Mountains) a Precambrian granite which contains spot than some 100 ounces produced Wilson, 1. D., 1961, p. 61—62 ty gold—bearing quartz veins. in Pima County. Main placer ABM file data area of district farther north east in Pinal County.

VIII. Catalina (Santa Catalina) 12S 141 ———- Cu, Ag, Au—, Mo- Relatively weak, spotty, and local copper Shaft, pil and tunnel operations. Moore et alia, 1941 District mineralization with minor molybdenite in a Only one productive mine, DuBois, 1959 (South base of the Santa wide alteredbreccia zone along the Catalina Pontqtoc (T 12S, R 141, NEh Fair & Jinks, 1961 Catalina Mountains) foothill fault dividing Catalina Gneiss, a Sec. 3), located in 1906 and Medhi, 1964 Laramide metamorphic, from Tertiary to worked in 1907 and 1916—1917 ABM file data Quaternary Pantano conglomerate beds. by Pontotoc Copper Co., Ramsdall, and Texas—Arizona Copper Co., producing a total of some 5,000 tons of hand picked ore averaging about 4% Cu, 0.5 oz. Ag/T and a trace of Au.

IX. Cerro Colorado District 205 101 ---- Ag, Au, Cu-, Epithermal quartz—fissure veins with minor One of the oldest producing Davis, 1955 Pb-, Zn- (Hg) base metal sulfides and mercury—bearing areas in Arizona with scattered Jones, 1957 tetrahedrite. Silver and gold enrichment in small and relatively shallow Chaffee, 1964 the oxidized zone. Host rocks are a complex mines and prospects active in ABM file data of Cretaceous quartz latite and andesite por termittently from at least the phyry flows and tuff with some interbedded 1770’s to about 1950. Total es sedimentary beds, invaded by Laramide (?) timated and recorded production andesite porphyry, rhyolite and dioritic has been some 4, 500tons of ore plugs and dikes. containingabout376, 000 oz. Ag, 460 oz. Au and minor Cu, Pb,

1. Black Princess mine 20S 10E SE¼ Ag, Au, Pb, Cu- Spotty anglesite, cerussite, argentiferous Shallow shaft and surface opera Jones, 1957 (Udall) 14 galena and minor copper carbonates in an tions. Worked sporadically ABM file data oxidized and supergene enriched quartz—fis from early 1800’s to 1939. Some sure zone inCretaceous andesite porphyry. 100 tons of ore produced, av eraging about 20 oz. Ag/T, 0.2 on. Au/T with minor lead and copper. Table 4, cont. MINING DMThICT LOCATION MINERAL GEOLOGY TYPE OF OPERATION REFERENCES AND MINES T. R. Sec. PRODUCTS AND PRODUCTION

2. Cerro Colorado mine 203 1OE Cen. g, Au, Pb, Zn, Irregular, lensing, dnasy, quartz—fissure Shaft workings. Operand from Copper Nandbook, 1903, 1909 (Heintzelman, Silver Queen; 25 Cu (Ng) vein with spotty cerargyrite, cerussite, 1770’s in about 1837, producing Jones, 1957 Sonora Exploration & Mng. anglesite, chrysocolls, copper carbonates, some 3,000 tons of ore averag— ABM file date Co., Consolidated Arizona frelbergite, galena, spbalerite sod traces ingaboutl000z. Ag/T, 0.loz. Mine & 0411g. Co., Cerro of cinnabar. Minor barOn, calcite and much Au/T, andmincramoants of lead Colorado Mng. & Milg. Co., iron oxide. Wall rock is an sndeslin por and copper. Udall, Cerro Cristo Mines phyry complex. Ce., Steinfeld, Baker, Snyder.

3. Liberty mine 20S 10E NE¼ Ag, Au, Pb, Cu Irregular qusrtz-fissure vein with spotty, Shnftandpitwnrkings. Operated Copper Nandbook, 1903, 1908 (Liberty Mng. & Smling Co.) 10 oxidized, argentiferous gslena and minor sporadicsflyfrom mid-1800’ain Chaffee, 1904 gold and copper mineralization. early 1900’s producing acme 100 ABM file data inns of ore averaging about 80 oz. Ag/T, 0.5 nz. Au/T and minor Pb and Cu.

4. Mary 0 mine 20S 10E E. Ag, Pb, Cu, Au, Irregular, lenaing, drosy, and milky, parily Shaftworkinga. Operated inter Davis, 1955 (Mary E, Princess group; Cen. Zn (Ng) oxidized, quartz vein containing stringers mittenily from late 1880’s in Jones, 1957 Mary Leasing Co., Ayers, 21 and veinlets of galena, aphaierite, copper 1950, producing some 800 tans ChaNce, 1904 Gcodaill & Carry Bros., carbonatea, and mercury-bearing tetrahe of ore averaging about 00 oz. ABM file data Workman, Woraley, Bledaoe, drite with minor barite and calcite along a Ag/T, 1.5% Pb, 0.7% Cu and Turner, Mary 0. Mng. Co., fault zone in Laramide (7) propylitized an minor Au and Zn. Roberta) desite porphyry. Specs of cinnabar. Ore shoot controlled by fault intersection.

5. New Colorado mine 20S 10E E. Ag, Au, Pb, Cu, Irregular, parily oxidized, quartz-fissure Shallow shaft and pit workings. Chaffee, 1804 (Silver Colorado Mug. Corp. Cen. Zn (Ng) veins with argentiferoua galena, freibergite, Prospected and worked from ABM file data of Am. 17 copper carbonates and oxides, aphalerite 1800’s to about 1900 with es and rich silver mineralization. Minor ha— timated production of some 50 rite, calcite, and cinnabar. Strong Iron and tons of ore averaging about 120 manganese oxides. Wall rock is Cretaceoua oz. Ag/T, 2.7 oz. Au/T, 19% andesite porphyry. Pb and 2% Cu.

0. Silver Rill mine 20S lOE E. Ag, Au, Pb, Cu, Irregular, lenaing, oxidized, quartz—fia— Shallow shaft operation. Worked Chaffee, 1864 (Gold Coin; Cotton & flynn, Cen. Zn (Ng) ebre veins with spotty argentiferous baae sporadically from 1800’s to ABM file data Lowell, MacFarlane) 17 metal aulfidea in stock of Laramide dioritic 1930’s, producing an estimated intrusive and bordering andeelte porphyry. SO inns of ore averaging about Minor tetrahedrite and cinnabar. 80 oz. Ag/T, 5% Pb, 4% Cu and 0.1 cz. Au/T.

7. Silver Shield mine 20S 1OE NE¼ Ag, Pb, Au, Cu, Irregular, spotty, and weak, oxidized, ar Shallow shaft operation. Worked Jones, 1957 (Coloradn Clark; Falk, 35 Zn (Ng) gentifernue, base metal aulfidea in a lens- intermittently from 1880’s to Chaffee, 1964 Miinhell) ing quartz-fissure vein in Creteceous an early 1800’s, producing about ABM ifie data desite porphyry. 20 inns of Mghgrade silver ore A. UlflflOt MR. (lilt WILL) U- N- — MN, AU, Un, Ag, 1. Mflpnn osldn iloag Mutt souse M Mostly ihillow, ennui work- Firthim it alta, 1901, p. 109- District Pb, Zn Pilsosofo lImestone, larnlde quarts dl- tugs. Zn. end pnotoue meal iii (CtmsrronudZbflidenXML) 129 at units end mndults porphyry. &poeltoproáioedeoms 120 tons Aft We deta 2. Spotty, oxidized, auriferous, and ar of ore averaging about 0.7 uz. gentiferous, base metal aulfidea in Irregular Au/T, 8% Cu, 1. 5 ez. Ag/T and quartz—fissure veins in Precambrian achiat, minor Pb from 1910 in 1939. Laramide granndiuriin Intrusive, and Ter Manganese production in early tiaay volcanica. 1940’s and mid-1950’a amounted in about9, lOOlong inns of 35%4 Mn.

1. Black Diamond group uS 3E NW¼ Mn Soft manganese oxides with aegregatiuna of Open cut and adit workings. Farnham et ala, 1961, p. 114— )Pettijohn & Kennedy) pailomelane and stringera and hleba of cal About 40 lung tuna of low grade 115 115 2K NE% cite along a brecclaied fault zone in Lara— sorted manganeae ore shipped 12 mide quartz diurlin. Mao avein—Ithe occur in 1955. Protracted rence along an intrualve—andeaite porphyry cuninct.

2. Black Jack mine uS 25 N. Mn Pafinmelane, wad, and other soft manganese Shaft and drift wurkinga. Some Farnham et ala, 1961, p. 113— Cen. oxides, with local abundance of Iron oxidea, 1,240 long inna of 35% Mn ore 114 36 in and around Paleuzuic limestone frag,nente produced in the mld—1950’a. Protracted in a bedding plane fault zone between lime— ainne and quartziin beds.

3. Isabella mine uS 25 NW¾ Ao, Ag, Cu-, Irregular and lensing, quartz vein with aput Shaft and pit workings. Proa ABM file dain (Isabella Mines Co.) 23 Pb-, Zn ty sad weak, base meinl aulfides along a fault pected and developed in early Protracted zone between Precambrian sublet and Ter lalO’a but only produced some I-A tiary slllzlz vulcanize. Slight oxidation and an tons of ore averaging about Cl eorlzhmeet near the surface. 0.5 uz. Au/T and 0. 1 nz. Ag/T.

4. Manganese King group uS 2K NW¾ Mn Irregular and erratic psiumelane, wad, and Shallow shafts and open cute. Farnham et alia, 1961, p. 112— )Struckaneyer, Young, Price 36 soft manganese oxides with some calcite and Some 580 lung tuna of aurted 30% 113 and Duraey, Manganese King hematite in a Paleozuic limeatone bed. Mn ore produced in 1955. Mug. Co.)

5. Monte Criato mine 12S 35 MV¼ Au, Ag, Cu Oxidized, quartz-fissure vein with surface Shaftand innnelwurkinga. in the ABM file data )McNaft, Andrade) enrichment of gold, afiver and copper in 1930’s produced aume 65 inns Protracted Laramide metamorphic sublet and phyllile. uf ore averaging about 0. 9 uz. Au/T, 0.5 uz. Ag/T and 1% Cu.

6. Montizona mine uS Ig SW¼ Cu, Ph, Ag, Au Spotty, argentiferous, and aurfferuua, cop Shafts, tunnels and diamond ABM file data (Muntizona Copper Co.) 19 per carbonates, chalcucite, cuprite, ten drilling. Developed in lain Protracted orite, chryaucnlla, and minor chalcupyrile 1920’s and mld—1930’a but only and galena in brecciaind quartz—fissure shipped some 15 tuna of high veins along a fault zone in Laramide grano grade oxidized copper ore av diuriin. Numeruua aplite, trachyte, and eraging about 67% Cu, 8 uz. andealte dikes. Ag/T, 7% Ph and 0. luz. Au/T.

7. Orn Grande mine 12S 35 W. Cu, Ag, Au Oxidized, quartz—fiaaure veins with aurface Shallow sham and pith. A few ABM file dain (Sterling; Weathruuk & Cen. enrichment of gold, silver, and copper in inns of about 4% Cu, 3.5 uz. Deflhudea) 7 Laramide metamorphic achiat and phyllite. Au/Tand 8 oz. Ag/T ahipped in Protracted 1924. Table 4, Cent.

MINING DISThICT LOCATION MINERAL GEOLOGY TYPE OF OPERATION REFERENCES AND MINES T. R. Sec. PRODUCTS AND PRODUCTION

S. Stalls Marie No. 1 mine uS 2E N. Mn Psiomelsoe sod wad, with pyrolusits, ml— Surface stope, shaft sod incline Farnhsm et alia, 1961, P. 109— (De Silva B Mlinio( Ceo. nor msoganite, end calcite stringers in workings. Some 2,700 long inns 111 36 depth, to irregular replacemente in folded of msogsnese ore averaging s— Protracted sod partly marbleized Paleozoic limesinne bout 30—40% Mn shipped in 1939— along a beddingplsoe faultabove a rhyolltic 1946 sod 1954—1956. porphyry intrusion.

9, Stalls Maria No. 2 mine uS 2E N. Mn Mixed hard sod soft msogsoese oxides with Open cutsod incline shaft work- Farnhsm et shin, 1961, p. 111- (De Sites & Mlinio( Cen. some admixed hematite sod calcite in re- ings. Some 540 long tons of 112 36 placements in Paleozoic limestone overly— sorted ore averaging about 27% Protracted ing quarbote. Mn shipped in 1954-1955.

XI. Coyote District 16S 7— Cu, Ag, Au, Mn, 1. Partly oxidized copper, zinc sod molyb— Shallow cuts, pits, adits sod Wargo, 1954 (Coyote Mins. sod area N. of SE Zn, Ag deoum mineralization in a faulted, contact shaftworldngs except forRoad— Eurtz, 1955 Quinlan and Coyote Mtns.) metamorphosed Paleozoic limestone pend— aide mine. About7loinns of ore Neindl, 1965 sotin Lanmide quartz monzooite intrusive. averaging 10% Cu, I. 03 oz. ABM file date 2. Spotty sod relatively weak oxidized cop Au/T sod 1.7 oz. Ag/T pro ‘-a per mineralization along a fault zone cutting duced. Some 145 long tons of low ‘-a volcanics sod sediments of Laremide age. grade Mn ore also shipped. a) 3. Narrow stringers sod discontinuous lenses of msogsoese oxides along strong fracinre orfaultzooes cutting Laramide age rhyolite.

1. Black Hawk group 16S 7E SE ¼ Mn Discontinuous, narrow stringers of hard Cuts sodpits. Some 46 long tons Farnhsm et alia, 1961, p. 116 (Drake Mog. Co. I 14 msoganese oxides onfracinres, sod soft wad of sorted 20%aft ore shipped in betweeo&acinres, along afaultzone cutting 1915. Tertiary rhyolitic volcanics.

2. Bonanza mine 16S SE W. Cu, Mo, Zn, Ag Partly oxidized pyrlin, chalcopyrite, bor Shaft sod adit operations. Carrigan, 1971 (SRK; Msozo, Death & Cen. ni covellite, sod chalcocite with some Worked sporadically from 1909 ABM file data Mitchell, Calvillo, Kerr( 26 molybdenite, sphalerite, garnet, sod ep— in 1951, producing some 700 idote in small high grade pyrometasomatic inns of ore averaging about 10% bodies in a roof pendsot of faulted metaso— Cu, 0.03 oz. Au/T sod 1.7 oz. matized Paleozoic llmesinoe along acontact Ag/T. with Larsmide aplitic in pegmatitic quartz monzonite.

3. Jeso E group 161 7E SW¼ Mn, Cu-, Zn- Numerous fracinres contain narrow, dis Open cut, shaft, sod pita. Some Farnham et alia, 1961, p. 315— (Black Bear; Drake Mog. Co.( 13 continuous, Mgb grade veinlete of hard mso— 100 inns of ore concentrated to 116 gsoese oxides, with some soft wad between, 17. Slonginne of 43.1% Mn pro along awide fault zone cutting Tertiary rby duced in 1954—1915. olitic volcsoics. Copper—zinc mineraliza tion in fracinre zone in north of msogsoese outcrops. Disseminations, streaKs, sf0 Iracture flu— ChurL whrurrrs. hrrurry 4. Roadside mine 16S 8E W. Cu, Ag, Au, Hg togs of native copper, copper carbonates, veloped prior to 1900 and fur (St. Francis; Randolph and Cen. and sparse sulfides, tetrahedrite, ther developed in 1920—1921. Huntington) 11 oxides, schwatzite, cinnabar and native mercury Recent diamond drilling. No withquartz, calcite, and epidote in strongly production reported but ore said mplace altered and kaolinized Laramide andesitic to average about 3% Cu volcanics and Cretaceous (7) aremtic sedi withgood silver and minor gold. ments alonga strong fault zone cut by cross- Reportedly some spots of 0. 8% fracture zones. Deep oxidation (800 feet) Hg. and reported aplitic or pegmatitic quartz monzouite cut at depth.

of partly oxidized Numerous mines andprospocts, Schrader, 1915, p. 141—152; ---- Ag, 1. Replacement deposits XII. Empire District 17- 17E Pb, Zn, Cu, zinc, copper mineralization in Per— mostly relatively shallow. 1917, p. 237—269 (Empire Mtns.) 18S Au, Mo, W-, V lead, mianlimestene and shale and in Cretaceous Worked sporadically from about fetes, 1029 Wilson, R. A., 1934 sedimentary formations, localized largely 1880 and through 1964, produc 1938 in badly faulted and overthrusted blocks and ingsome 34, 500 tons of ore con Alberding, 1939 associated with strong faults and fissures. taining about 172 tons of cop AlexIs, 1940 Some rhyolitic and dioritic dikes. per, 8,335 tons of lead, 258 tons Maynga, 1941, 1951 2. Contactmetamorphic deposits of copper, of zinc, 740 ounces of gold, Wilson, E. 0., 1940, 1949 tungsten, and ininor lead and molybdenum 206,400 ounces of silver and 76 Galbraith, Marvin, 1942 along the contact of Paleozoic limestone and tons of molybdenum. 1969 Laramide intrusive. Butler, 1971 3. Weak base metal sulfldes along fissure FinneD, veins In Laramide intrusive and Paleozoic quartzlte.

minor gui— Shaft, tunnel, and open pit op Copper Handbook, 1904 1. California mine 175 17E Cen. Cu, Pb, Ag, Au Copper and lead carbonates and brec— erations. Worked intermittently Schrader, 1915, p. 150—151 (Mann, Andrade; Bradford 19 fides In apyrometasomatic deposit in a much since about 1880 to 1915, pro Gilliagham, 1936 Development Co., Andrade, dated Paleozoic limestone along granitic in— ducing some 150 or more tons Wilson, E. B., 1951, p. 51 Schiey & Dement, Thcson faulted contact with Laramide of ore averaging over 10% Cu, ABM file data Transfer Co.) trusive. 5 oz. Ag/T, 2% Pb and 0.5 oz. Au/T.

orebodies and chim incline shaft operations. Work Schrader, 1915, p. 149 2. Chief mine 18S 17E NE k Pb, Zn, Ag. Cu-, Irregular replacement anglesite, smith ed intermittently from early Feiss, 1929 (Hiltano group. State of Maine 18 Au- neys contalningcerussite, galena, 1900’s to 1963, producing over Alexis, 1939 group; Dick & Sullivan, Hilton, sonite, malachite, aurichalcite, a gangue of 500 tons of ore averaging about ABM file data U. S. Magnetite Co. plumbojarosite, and azurite to calcite, aragonite, siderite, and quartz to 25% Pb, 8 oz. Ag/T, 0. 5% Cu, badly faulted Permian limestone beds, over and minor gold and zinc. lying a Laramide dioritic dike and asso ciated with a rhyolite porphyry dike. Ore— bodies controlled by intersecting fissures and faults.

in weathered, Surface workings. Some 100 ABM ifie data 3. Copper Min. mine 18S 17E NWz Au, Ag, Cu-, Pb- Oxidized, base metal sulfides tons of 0. 5 oz. Au/T and 19 oz. (Sullivan) contact metamorphosed, Paleozoic lime stone and quartzite along a contact with Ag/T ore shipped in 1903. Laramide quartz monzonite.

Cu Zn, minor and 6oz.Ag/T

Pb,

about 23% averaging of ore dikes. sive

tuna 50 aome

producing to 1940, intru Laramide with associated limestone

1900’s

early

from

sporadically

Permian in faulted

carbonates metal base

18

Driggs)

(Hilton,

mines

date file

ARM

Worked

operations.

Shallow

of orebndies

replacement

irregular Small

Cu-, Au— NE¾ Ag, Pb, 17Z 18S La Plain and Top Red Justice, 10.

gold. minor and

nz. AfT 6

Cu, 0.6% 11% Zn, dikes. intrusive in Laramide close

30%

Pb,

about

averaging of ore and qusrtziin limesinne Permian of contact

tons

250 some producing 1930’s, faulted alnngthe replacementorebudies ular

Tong)

file date

ARM

in

1900’a early

inrmittedlyfrum in irreg

Jarosite and

quartz,

calcite,

with

Au

18

Hilten, group;

Maine of

(State

p.

149

1915,

in

Schrader,

Worked

operations.

Shalt

carbonates

copper minor and zinc,

Lead,

Cu, Ag, Zn, NZ¼ Pb, 17E 188 mine #2 9. Jerome

intrusive. monzoulin quartz Laramide

production. in metal beds close limeainne Paleoznic idotized

file data ARM base

Small in 1941. produced ep— and

siicatad, garnetized, molized,

p.

107—100

1960, et

ala, Dale

ore 75%

W03 5—0.

0. of

mount mar— in carbonates

and lead copper sparse Ag-, Mo-

p.

36

1941, Wilson,

a-

small A

workings.

Shallow

with

and powellite scheelite

Disseminated

Pb-, Cu-, W, 4, 17E 18S claims Tungainn finn 8.

1946—1947. 1935,

in

Au Cu

and minor and AgJT, intrusive. monzonita quartz Laramide with

oz. 2 8%

Pb, averaging about the contact in close limesinne Paleozuic

Co.)

5111g.

of

ore inns 350

some

Produced in faulted

galena minor with

ore carbonate

8

Ore

Tucson

Jacobs,

(Hilton,

date file

ARM

workings.

shallow

Relatively

lead of

orebodlea

replacement

Irregular

Au— Cu—, Ag, SE¼ Pb, 17Z 188 mine llilinn 7.

Au/T. oz.

0.1

Ag/Tand 19 oz. 3%

Cu, Zn,

intrusive. Leramide large to

p-I

2%

6%

Pb, about averaging

ore close

limestone Paleozoic folded and faulted p-I

inns of

120 some produced

1943

in

sulfides minor and carbonates zinc and

Au

Cen.

(ltilinn(

date file

ARM in

and 1941

workings.

Shallow

copper,

lead, of

bodies

replacement Small Ag,

Cu, Zn,

Pb, E. 17Z 188 mine 6. Graveyard

Au. minor

and Ag/T dikes. by Laramide intruded limesinne

oz. 1 Cu,

1. 0.8%

Zn, 3% Pb, Permian and faulted folded in

intersections

file

20% data ARM

about

averaging of

ore

tons fissure along and chimneys ment orebodies

Mcffabon)

Hilton,

1939

AlexIs,

1,200

some

producing in 1930, replace irregular in pyrite

and

copyrite,

& Pantano,

Sullivan groups;

1929 Felss,

1800’s late

since

ed irregularly

chal—

galena, realdual

minor and

carbonates

Mo- Au, 18

Maine

of

State

and

(Hilteno

p.

148

1915,

Schrader, Work

operations.

shaft

incline copper

wulfenite, cenasite,

Angleaite, ¼

Ag,

Cu—, Zn, Pb, NE 17E 18S mine 5. Oopber

intersections. fissure

Au/T.

minor and oz. 7 Ag and by controlled Ore dike. a rhyolite in aDd

Zn, 5%

Cu, some 18% Pb, bout par beds and quartzite limestone

Permian

Co.)

Refog &

file data

AEM

a—

averaging ore

of

inns 2,000 and fissured faulted in strongly

and sideriin

Smllg. Louis St.

Hiltoo, Hoff,

1939

AlexIs,

some

producing 1937, in

1900’s quartz, aragonite, calolte,

with

aulltdes nor

inc.,

Mines

Midtheton

Schley,

1929

Fetes,

early

from

Worked

tions. mt

and

carbooatee

base metal

containing

Au

18

Co.,

Copper &

Lead

(Arizona

p.

149

1915,

Schrader,

opera

tunnel and

shalt incline

replacementorebodies

Irregular,

Oxidized,

Ag,

Zn, Cu, NE¼ Pb, 17E 185 mine (49) Forty—oine 4.

AND PRODUCTION

PRODUCTS Sec. H. T.

MINES AND

REFERENCES

OF

OPERATION TYPE

GEOLOGY

MINERAL LOCATION DHThICT MINING

Cont. 4, Table wornu ems. aaaa sag ,a 17Z Nfl Pb, Ag, Zn-, land oubonete with minor nine end oopper maNna unie. U. lad Cmflont. mIne IA on- eerly 1900’e nod In 1884-1030, (Orinden, lAWn) 18 Cu-, Au- athoabe in lneguler replacement bodies in faulted Permian limestone close producing some 700 tons of ore to contact with Laramide intrusive. averaging about 20% Pb, 3 oz. Ag/T and minor Cu, Zn and Au.

de Surface workings. Reportedly Schrader, 1915, P. 152 17S l7E SE¼ Cu, Ag Enriched copper carbonate in surficial 12. Lavery mine 1,000 tuna of copper—all 31 posit along contactof Larsmide quartz mun— some zuniin intrusive and faulted Paleuzuic and ver ore shipped in lain 1800’s Cretaceuua sedimentary formations. or early 1900’s. Mayugs, 1940 frregular replacement urebodies of base Shalt operation. Worked from 13. Lone Min. mine uS 17E SE¼ Pb, Ag, Cu-, and minor sulfides in early 1900’s and in 1920’s and ABM file data (Hilton, Dubornac Mng. Cu.) 8 Zn-, Au metal carbonates faulted Permianlimeatone invaded by Lara— 1930’s, producing some 4,800 mide intrusive dikes. tons of ore averaging about 35% Pb, 6 nz. Ag/T, and minor Cu, Zn, and Au.

151—152 mineralization along a fault Tunnel and incline operations. Schrader, 1915, p. Montana mine 17S lIE NW¼ Cu, Ag Oxidized copper 14. Wurkedin the 1890’s, pruducing Dement St 31 zone in brecciatad Paleuzuic limestone. (Black Diamond; about 10 tuna ef 9% copper ore. Scliley) since Feisa, 1929 Pb, Ag, Zn-, Small pockets ef ceruasite, snglesiin, Shaft operations. Worked ii. Prince mine 185 17E Cen. Alexis, 1939 Au, Mo smithsonlin and minor malachite, azurlin earlyl900’s to 1930’s, produc (Hiltano group; Hilton) 18 Cu—, 1951, 54—55 and galena along fissures in Permian lime ing some 150 tons of ore av Wilson, P. ABM file date stone in close association with s dioritic in— eraging about 50% Pb, 10 oz. trusive siB or dike. Ag/T, some Zn and minor Cu and Au. CD iniain 1800’s Schrader, 1915, p. 150 Pb, Zn, Ag, Cu, Lead and zinc carbonates and silver cifiur— Shallow workings. 16. Red Cloud mine 185 17E NE¼ cue— ABM file date ides in a fernginuua, oxidized Paleuzuic and early 1900’s produced (Driggs, Hilton) 18 Au limestone bed. aiderahle highgrade lead—silver

ore— Shallow operations. Worked in ARM file date lBS 17E NE¾ Pb, Zn, Ag, Cu—, Zinc and lead carbonate replacement 17. Stein nf Maine mine early 1900’s and 1939—1943, Mng. 18 Au— bodies in Permian limestone. (Hilton; Eastern Pacific producing some 100 tons of ore & Mllng. Co., Tong) averaging 10% Pb, 6 oz. Ag/T, some Zn and minor Cu and Au.

ShaSta and bmneis. Worked from Schrader, 1915, p. 142—147 lBS 17E E. Pb, Ag, Cu, Mo, Cerusaiin, wulfeniin, vanadinita, cerargy 18. Total Wreck mine 1940, producing some Abordlng, 1938 Mn-, V ruin, malachite, azuriin, chrysocolia and 1880’s to (Empire Mng. & Development Cen, Au-, a- Wiiaon, 1951, 52—53 minor copper and lead suifides in Irregular 14, 000 tona of ore averaging p. Co., Vail, Schley, Adams St and mi ABM file data replacementorebodies inhadiy faulted Per bout B% Pb, 7 oz. Ag/T Saxby, Gardner St Young, of mian limestone beds intruded by Laramide nor Cu and Au. Some 8 tons Torres) ship diorite stringers and dikes. molybdenum concentrates ped in 1918.

chior Shaft and tunnel workings. Pro Schrader, 1915, p. 148—149 lBS 17E W. Pb, Ag, Zn, Cu-, Base metal carbonates with silver 19. Verde Queen mine sporadically, from late Alexis, 1939 Mo- ides, wuifenite, and iron oxides in trregu— duced (Verde Queen Mng. Co., Cen. Au-, tuna ABM file data lar replacement orebodies in Permian 1in;e- 1800’sto 1928, some 3,000 Hilton) 17 Pb, atone. of ore averaging about 23% I oz. Ag/T and minor Cu St Au.

beWng well. on flb nor

mi end ephelerib plea, bonded npalir

ir and en fnntwall chalcopyrita minor with

1800’s.

late in

shipped pyrlin spotty Contained granite. cambrian

ore

Pb-Ag

grade of high nage

Pre cuffing

dike

rhyolite

Laramide a with

Co—

23

p.

King)

(Mountain

114

1915,

Schrader, ton small

A

workings.

Tunnel

associated

vein

quartz

oxidized

Partially Au,

Ag, Zn, Pb, NE¾

lIE 19S mine Enzenberg 1.

Au. and Cu

minor and Ag/T

8

nz.

Pb, 10% limestone. Paleozoic and granite

about

averaging ore

of tons

1,000

Precambrian of

contact a along zone fault

Co.) & Mllg.

Mng.

Snyder

some

producing

in 1915, 1900’s

siicified and

brecciated strongly a in

tion

36

Corp.,

Dodge

Phelps

Co. •

data file

AHM

early

from

speradically Worked

mineraliza

copper

and lead

oxidized tially

Cen.

Copper

p.

Midland

(Anderson;

154

1915,

Schrader,

operations.

tunnel and

Shaft

par

with

vein

quartz

lensing

and Irregular

Cu- Au, Pb, Ag,

So. lIE l9S mine Conglomerate 4.

Au.

nz. 0.3 and Ag/T 11 oz. Cu, 1%

30% Pb,

about averaging

ore of

volcanics.

Co.)

Mng.

Comstock

Arizona

inns

more or

100

some

Produced and

sediments

Cretaceous cutting dikes

and

&

Clyne,

Jones

Norlbet,

Co.,

1940. to

1100’s

late

from

ly plugs

latite

quartz Laramide with sociated

Mines

Comsinck

R., L.

&

intennittent

worked and

pected as

mineralization

copper and

lead

oxidized,

25

lode;

Cnmsinck

(Arizona

dain

file

ARM

Pros

cots. open

and

Tunnel

partially

spotty,

with

veins quartz

Irregular

Au Cu, Ag,

Pb, NW¾

15E 19S group mine Comsinck 3.

Cu and Ph,

Ag, of Au, inonage

granodinrite. cambrian

prodocingasmall

1936—1937,

in Pre cuffing vein

quartz

an

iron-stained in

14

data

file

ARM and

1500’s in late

Worked

nel.

zone oxidized

an

in

gold

free

with

cnpyrlte

Ceo.

p. Pallanes(

Hilt,

C

157

(Wisconsin;

1915,

Schrader,

tun and

incline

shaft,

Shallow

chal— and

galena,

pyrite,

oxidized Partially

Cu-, Pb-

Ag, E. lIE 19S mine Buckhorn 2.

Cu. and

Ag Pb, granndlnrite. Precambrian

minor

with Au

ore grade high of outing dike latin quartz Laramide a dering

innage

small a

1932, producing bor vein quartz limoniin—stalned, combed,

file

data

ARM in and 1900 in

prior

Worked haney— in a

gold

free with

nor chalcopyrite

12

p.

(Holliday)

156

1910,

Schrader,

cot.

open

and

shaft

Shallow mi

and

pyrite,

galena, oxidized

Partially Cu

Ag,

Pb, Au, NW¼ lIE lOS mine Arrastra 1.

silver.

ounces

12,060

and gold ounces dikes. associated and

latin

quartz mide

file

date ABM

390 of

inns zinc,

16 lead, of Lara intrudedby thaiwas granite

cambrian

1971

Stewart, tons

170 copper, of

tons bout2o Pre and sediments Cretaceous faulted block

1972b a—

containing ore

of

tons 000 2,

in sulfidea metnl

baae

oxidized geld or

free

1972a,

1971c,

1971b,

1971s,

some be

would

production Mine with veins calcite and

quartz

Scattered 2.

1970, bOsh, 1969s, Drewes, silver. of oz.

000 6, about with

tains.

1968

Gross,

gold

placer oz. 100

28, some moun— in the

veins

mineralized

scattered

1968 &

Finnell,

Drewes is

records and

ious estimates wae Source and terraces. cbanoels

stream

1966

Heatwole,

var by

1870’s

since production and past present In both

gravels, Irthated

1911

Schrader,

Placer

mines.

small relatively dia—

in irregularly

occurred of gold

nuggets

Zn

16E

1910

Hill,

and

operations

placer Numerous

and

flakes

and angular

coaree Relatively 1.

Cu,

Pb, Ag, Au, 15 19S District xm. Greaterville

PRODUCTION AND

PRODUCTS Sec. R. T.

MINES AND

REFERENCES

OF OPERATION TYPE

GEOLOGY

MINERAL LOCATION MINING DEThICT

Cont. 4, Table (Kentucky, Boston, Empire, 26 nor comhlned sGver and some attached ga— early 1900’s and small and spo Schrader, 1919, p. 159—100 Graham, Louisiana, Harshaw, jOE So.½ lena In medium size ravel along recent and radic atone then. Estimated ABM file data Hughes, Nigger, St. Louis, 17— older burled channels and terraces close to production of some 30, 000 nz. Ophir, Los Pozos, Colorado, 19 the mountain front. Aunrmorewlth about 6,000 oz. Chispa, and Sucker Gulches; So.¼ Ag. Stetson Co., ElOroMog. Co., 29, Grosterville Dredge Gold Mog. 20 Co. NE ¼ 31

7. Hancock mine 19S 15E E. Pb, Zn, Ag, Cu-, ft-regular quartz veto containing spotty, par— Shaft workings, to late 1900’s Schrader, 1925, p. 154—155 Cen. Au- tislly oxidized, base metsl sulfides and rich, produced a small tonnage of high 14 near surface, cerusslin and cerargyrita. gyade Ph—Ag ore. Veto cuts Precambrian ranndlnrlte.

8. Quebec mine 19S 15E NE¼ Pb, Ag, Zn, Au, Bande4 Iron—stained, qusrtz—cslclte-barite Shaft and tunnel operations. Schrader, 1915, p. 155 (Quebec Consolidated lOng. 26 Cu—, Ba— vein containinglrregularpockets of partially Wnrkedin 1000’s and sporadic ABM file data Co., Hurlbot & Chrisbnan( oxidized galena, aphalerito, pyrite, and ally up to 1940, producing a chalenpyrite along a Tertiary quartz—latite small tonnage of Pb-Ag ore with stock intruding Cretacenus sedimentary for minor Au and Cu. mations.

9. St. Louis mine 19S 15K NE ¼ Pb, Zn, Ag, Au, Spotty, partially oxidized, argentilerous ga— Tunnel and shaft workings. A Schrsder, 1915, p. 155—156 (Morningstar; Liberty Silver 25 Cu lena with sphalerite, miner pyrlte, and mi sporadic production from 1875 Stewart, 1971 Mines Co., Otey & Forney, nor cheleopyrite in a complex stuckwnrk of to 1946 of some 300 or mere tons ABM file data Martinez, St. Louis Mines, quartz veins and stringers, and Tertiary of ore averaging about 0% Pb, L’3 inc.( quartz latHe dthea, in a shear zone cutting 7% Zn, 11 oz. Ag/T, 0.5 ez. altered Cretacenus aedimenta. High gyade Au/T and 1% Cu. pocketa of geld in the iron oxide capping.

10. Yuba mine 19S 15E SW¼ Pb, Zn, Ag, Cu, Quartz-calclte-harlte veins, handed and incline shaft. Worked in the Hill, 1910 23 Au with comb texture, containing psrtially ox 1880’s, producing some 50 or Schrader, 1915, p. 156—157 idized galena, aphalerito, and chaleopyrite more tons of highgrade Ph-Ag- and small pockets of argentite in sheared Au ore. Precambrian gysnodinrite along a strong fault zone.

XIV. Growler District 14S 7W ---- Cu, Ph, Ag, Au- 1. Oxidized copper and lead minerallzatlnn One mederste size and several Bryan, 1925, p. 195—196 with minor sulfides to small outcrops of prospects with tonnela, ahsfts Darton, 1925, p. 288 fractured and metamorphosed Psleozelc and pita. Some 50 tons of ore ABM file data aedimentary formations on or near contacts containing about 6 tons of cop with Mesozoic intrusive ranitic rocks. per, 200ounces silver anda few 2. Smsil spotty superficial gold occurrences ounces gold were produced spo to fracture and fault zones in volcanics. radically from prior to 1900 to 1949.

1. Growler mine 149 7W NE¼ Cu, Pb, Ag, Au- Copper carbonates, silicates and miner Tunnel and shsftworklnga. Pos Copper Handbook, 1909 (Copper Hill reap; Boaton 34 chalcocite in a strong Iron gessan near the sibly some 45 tons of ore aver ABM His data Gold-Copper Co., Colonial contact of Paleozoic limestone and quartztte aging about 3% Cu, 5 oz. Ag/T Copper Ce., Growler Copper with dishase. Suffides reported in depth. and miner Au produced spo Cu., Bell, Long, Ferrell & radically since early 1900’s. Gow( Table 4, Cont.

MINING DISThICT LOCATION MINERAL GEOLOGY TYPE OF OPERATION REFERENCES AND MINES T. R. Sec. PRODUCTS AND PRODUCTION

XV. Gunsight (Meyer) District 14- 4W ---- Ag, Au, Pb, Zn, Spotty baae metal mineralization and local Numerous, generally small and ABM file data (Ouoslght Hills) lSS Cu, W, Mo, Ba timgaten, oxidized and enriched locally with shallow, bmnels, shafts, and ailver and gold, in quartz, calcite and barita pita. Proapected sod worked veina and lenaea in fault and fiaaure zunea aporadically aince the early cutting Laramide granitic intruaive. 1870’a. Eatimated and reported production would be over 15, 000 tons of ore containing about 776 tons of lead, 100, 600 ounces of silver, 400 ounces of gold and minor copper. Only a few tons of scheelite ore produced.

1. Ajo Guosight mine 1SS 4W V Au, Ag-, Cu-, Spotty oxidized copper mineralization with Shaft workings. Originally Mine Bandhook, 1920 (Ajo ilunsight Mng. Co.) Ceo. Mo-, W near surface enrichment in gold and silver prospected in lain 1080’s. Pro ABM ifie data 11 in quartz-calcite stringers along a fissure duced a few inns of gold ore in zone in decomposed Laramide granitic in— early 1920’s. trusive, close to the contact with Tertiary basaltic andesiin. I-A 2. Black Bess mine group l5S 4W SW¾ Au, Ag-, Cu-, Spotty oxidized copper mineralization with Shaft workings. Originally Mines Handbook, 1920 (Submarine group; Black Bess W-, Mo- minor scheeliin and powelliin, enriched in prospected in lain 1080’s but ABM file data Consolidated Gold Mng. Co., SE k gold near the surface, in quartz-calcite worked and produced sporad Black Bess Mog. Co., Ajo— stringers along a fissure zone in decomposed ically some 00 inns of gold ore Papago Gold Mng. Co. Laramide graultic rock near the contactwith between 1918 and 1934. Tertiary basaltic andesiin.

1. Bullion Bar mine group 1IS 4W Nfl Au, Ag-, Cu-, PI Spotty oxidized copper mineralization, en Shaft and pit workings. Pros— Mines Handbook, 1920 (Mountain Lion group; Bullion 11 riched in gold near the surface, in quartz pecindin lain 1890’s but worked ABM file data Bar Mng. fi DevelopmentCo., stringers alonga fissure zone in decomposed and produced a few tens of inns Gunsight Detroit Mng. B Larsmide granitic rock atthe edge of a Ter of gold ore in 1917—1918. SlIng. Co.( tiary basaltic andesiin cover. Some spotty scheeliin.

4. Gunsight mine 14S 4W Ceo. Ph, Ag, Zn—, Network of lensing quartz—calciin—bariin Shaft and tunnel workings. Mines Handbook, 1920 (Carthage Silver Mng. Co., 16 Cu-, Ba veins withspotty, partlyoxidized lead, zinc, Prospecind as early as 1870’s ABM file data Fernald & Scott, Gunsight and copper mineralization along ininrsect and reporindly produced some Mng. Co., Butier, Graham ingfissure zones in Laramide granitic rock. 15, 000 inns of $40/T Ph—Ag ore & Dickey, Fisher Mng. Cu. in 1881-1884. Sporadic produc tion of some 120 tuna of ore av— eraging22%Pb, 5 oz. Ag/T and oz. Au/T since 1918.

5. imp, figuero, end Empire 155 4W No. Au, Ag Spotty, email, enrIched pocimb of gold eM Shaft eM ewboe woridoge. ABM file dab mince On. cOver rob.. to mddleed querto etoinpre Produced come 15 tune & on (Bntsy, talliron S along a finn sane In dnompoeed Ice- avenging chant 1 us. MIT end 6. LIttle COld mine 1W SW 5W5 aillca flux Ajo smelinr. (Denning Mng. Co.) 19 mide granitic intrusive. for minor Shallow shafts and pits. Some ARM file data 7. Lucky Strike mike 14S 4W NW¾ Au, Ag, Cu- Spotty pockets of eorlched go)d with of ore averaging ahout (Sands) 35 sliver and oxidized copper mineralization 15 tons in quartz stringers oo fissures in decom 0.5 oz. Au with minor Ag and posed Laramide intrusive. Cu produced in 1935.

Shaft and open cut workings. Wilson, 1941, p. 41 S. Sunset Limiind mine group 14S 4W SW¾ Au, Ag, W Shear zones with lenticular, oxidized iron— worked sporad ARM file data (Yellow Astor, Wonder; 25 sinined, quartz veins containing pockets of Prospecind and aince 1800’s. Proba Brsmwell & Sullivan, Gunsight enriched gold, minor silver, and spotty ically lain Laramide blysomeiitnns of 1 oz. Au ore Gold & Tungsinn Sing. Co.. scheellin cutting a weathered acheellin ore Jones, Greer, Myers, granitic pediment. and a few tuna of Turners) produced. and innnei workings. A few ABM ifie data 9. SurprIse mine 14S 4W SE¾ Au, Pb-, Ag- Oxidized quarts stringers and lenses with Shaft high gold ore (New Gunaita; Gunaight Mng. 10 weak and spotty lead mineralization and tuna uf grade Cu., Sparks) small enriched pockets of gold in Laramide ahipped in 1932. granitic intrusive.

XVI. Helvetia—Rosemont Districts 17— 15— Cu, Pb, Zn, Ag, 1. Irregular, partly oxidized, pyrometa— Fifty or more amall in medium Schrader, 1915, p. 91—141 (Northern and central Santa 18S 16E Au, W-, Mu—, somatic replacement copper depoaita with size mines and prospects have Schrader, 1917 Rita Mins.) Lhnesinne, aubordinain and spotty lead, zinc, inngainn, heen opened or worked since the Thomas, 1931 Marble and molybdenum mineralization in thrust early 1890’s. Toinl esttmaind Lee & Borland, 1935 faulind, sheared, and atinred Paleozoic and reporind production through Dunham, 1937 lftneainne and quartziin, and in Cretaceoua 1972 would he some 430, 000 tons Popnff, 1940 llmy heda. Controlled hyatrucinres orhed— of ore containing about 17,500 Jones, 1941 tsZ dingplanes incontactwithnr close inLara tons of copper, 350, 000 ounces Johnson, 1941, 1949 mide quartz latin porphyry stacks and dikes. of silver, iSO inna of zinc, 260 Creaaey 0 Quick, 1943, 1955 Locally the intrusive contains disaeminaind tuna of lead and a minor amount Rrnwne, 1959 copper mineralization. of gold, molybdenum and tong— Schnfroth, 1995 2. Spotty and irregular, partly oxidized, sinn. An indefiniin amount of Drewes, 19i9a, 19i9b, 1971a, baae metal aulfidea with some scheellin a— limeatune and marble have been 1971c, 1972a, 1972b, 1972c longquartz—shear zones orhreccia zones in produced. Drewes & Finnell, 1968 Precambrian and Laramlde granitic intru Finnell, 1971 aivea. 3. Paleozoic llmeainnea, tonally metamor phosed in marble.

1. Andrada Marble quarry 17S liE NW% Crushed marble Faulind and metamorphoaed Paleozoic lime— Open quarry. indefiniin amount ARM file data 21 ainne. of atone taken for roofing gran ules and decorative purposes.

2. Blow Out mine 17S liE NW¾ Cu, Ag Spotty chrysocoila, maiachiin, and minor Tunnels, shafts, and open cuts. Srowne, 1958 (Cardiello 0 Seraaio, Aricu 21 pyrlin and chalcopyriin with sooty magnetiin Some 150 tuna of ore averaging ARM file data Mng. Co.) along fault and fracture intersections in a about 3.5% Cu and 2 oz. Ag/T ailicified, garnetized, and epidotized Palen— produced in mid-1950’s. zoic limeainne block engulfed in Laramide intrusivea. Table 4, Cont.

MINING DISTRICT LGCATIGN MINERAL GEOLOGY TYPE OF OPERATION REFERENCES AND MINES T. R. Sec. PRGDUCTS AND PRODUCTION

3. Blue Jay-Good Friday 185 mines l5E W. Ag, Au, Pb-, Tabular replacement deposits of srgeotite, Tunnel, shafts and open cuts. USGS Min. Res., 1907, p. 179 (Iowa Mng. & Development Ceo. Co-, W argentiferous galena, and pyrite, oxidized Worked sporadically from 1881 Schrader, 1911, p. 132-134 Co., Good Friday Mng. Co.; 12 near the surface, with rich cerargyrite and to 1939, producing some 2,300 Dunham, 1937 Corzelius, Taggert & free gold, along steep bedding planes and tons of ore averaging about 21 Johnson, 1941 Drunzer( lamprophyric dikes in Permian limestone nz. Ag/T, 1 oz. Au/T, and mi ABM file data bordering Laramide intrusive quartz men— nor Ph. High grade Ag—Au ore zonite. Some copper staining and scheelite in surface cuts. in area.

4. Broad Top mine SOS lIE E. Cu, Ag, Au-, Irregular copper mineralization, largely Tunnels from adjoining Exile Heyman, 1959 (Lewisohn Copper Corp. I Cen. W-, Mo- oxidized, in strongly breccisted Permian claim. In late 1910’s produced ABM file date 24 quartzite, silicated Permian limestone and snmel, 900 tons of ore averag— bordering Laramide quartz latite porphyry teghefter than l%Cu and 10 uz. along a fault znne. Some disseminated Ag/T. Minor Au. scheelite and spots of molybdenite.

1— I. Bulldozer mine 185 15E Ho. Cu, Ag, Au- Copper mineralizatinn, mainly malachite Shafts, tunnels, and open cuts. Schrader, 1915, p. 124 1>3 (Tip Top Cnpper Co., Ceo. and azurite, with minor chrysocnlls, ten Productive intemnittently from ABM file date Chamrud, Bulldozer Mines 15 on, and native copper, in small, thin, 1879 to early 1910’s. Probably Co., Gwens, Rsiney( isolated, thrust faulted, crushed blocks of yielded some 18,000 tons of ore silicated Pennsylvanian (?( limestone in averaging about 1% Cu, 1 nz. contact with Laramide granitic intrusive. Ag/T, and minor Au.

6. C. & H. mine group 17S 16E 21 Cu, Ag, Au— Sporadic and relativelyweak copper carbon Shallow shafts and adits. Pos Schrader, 1915, p. 136—137 (Copper Alex, Black Horse, ates and miner sulfides, pyrite, scheelite, sibly some 100 tons of hand Lee & Borland, 1935 Nevada, Green Monument, and poweDite in small, irregular pyromete picked copper ore averaging 3— Dale at alia, 1961, p. 111—112 Coyote( somatic deposits in Creteceous brecciated 5% Cu produced prior to 1900 conglomerates and faulted Paleozeic lime— and 3 tons of 1% + WG1 ore in stones in contact with dikes and stocks of 1955. Laramide quartz monzonite.

7. Copper World mine lOS lIE SW¼ Cu, Ag, Au, W Chaloepyrite with minor chalcocite; copper Shaft workings. A major pro Schrader, 1015, p. 99—106 (Black Horse shaft; Helvetia 13 carbonates, oaldes and sulfate; and some ducer, matelyfrom 1899 to 1916, Johnson, 1941 Copper Co., Michigan- NW % spotty disseminated scheelite and melyhden— with some 42, 000 tons of ore Jnnes, 1941 Development Co., Helveda 24 ite along fractures, in irregular pyromete— averaging betterthsn 5% Cu. a- Creasey B Quick, 1955, Copper Co. of Arizona, somatic replacements, and disseminated, bout 1 oz. Ag/T, and minor Au. p. 314—315 Blankenship, Sante Bite Sing. in siticated and locally pyritized Pennsyl Heyman, 1958 Co. vanian limestone and underlying Cambrian ABM file date quartzites along a strong fractore zone ac companying a thrust fault plane.

8. Crown claims Nos. 1 B 2 17S 16E No. Ph, En, Ag, Cu- Spotty, mostly oxidized, lead, zinc, and mi— Shallow workings. Produced ABM file date (CaWlollo) On. OOI’OOppnmInII’IUIIUOOIIODJIflW na 10M 80 tOS of on RVONØOJ 60 La Ianmide quafl monoolS. aWut 10% Pb, 6% Zn, and Boo. ALIT La 1647-1848. W. UUPUin mini roisp aim aim aiw nil aia, ‘‘I “‘‘ •‘ (Ciiprtb M. I Im1. Co.) ii Zn-, Pb- mini, and oiddei and epottr minor molyb- duoediporidloillyfrom 1555 to Zotoider, 335, p. 34-325 denum, sphalerlin, and galena in Irregular 1915 some 2, 000 tons of ore av Lee & Borland, 1935 pyrometasomatic replacement deposits in eraging about 6%Cu and 0.6 oz. Browne, 1958 allicated Paleozoic marble and along fault Ag/T. ABM file data and fracture zones in overlying Cretaceous sediments in a thrust—faulted and strongly fracturedblock in coninctwith Laramide in— trusive.

10. DaylIght-Narragansett mines 185 lIE SE¼ Cu, Ag, Pb, Zn, Copper carbonates with minor chnlcopyriin, Tunnels and shafts. The Narra Schrader, 1911, p. 128—129 (York, tHIn, Narragansett 24 Ag, Au— chalcoclin, pyrite, and local areas of lead gansett mine worked intermit Mines Handbook, 1918 Bay; Lswiaohn Copper Co., NE ¼ and zinc mineralization in Irregular pyro— innily from lain 1870’s to 1961 Creaaey & Quick, 1955, Brown, Ramadell, Narragan 25 meinaomatlc replacement orehodlea in in— and has produced over 90, 000 p. 318, 319 sets Mines Co., Holderneaa, tensely ailicaind and crushed Paleozoic inns of ore averaging over 4% ABM file data Sininfeld & Co., Bennett, limeatone along folded series of thrust— Cu and 0. 5 oz. Ag/T. The Day Wllaon Mng. inc.) faalind block aegmenta. light mine produced, mainly from 5943—1951, some 4,000 tons of ore averaging about 5% Cu, 5% Zn, 3% Ph and 3 oz. Ag/T.

11. Dimple mine group 178 16E E. Pb, Zn, Ag, Cu—, Irregular, lenaing replacement depoatta of Shallow tunnel workings. Orig Lee & Borland, 1931 (Noacut mine; Noacut Mng. Cen. Au— (Sb) partly oxidized galeaa, aphalerlin, pyrite, inally opened in 1915 with spo Brownc, 1918 Co.) 28 and minor chaicopyrite, intrahedrlin, hour radic production through 1949 of ABM file data norilte, and pyrrhotiin along fractures and some 180 tuna of ore averaging faults in chloritized and aericitized Crc— about 13% Ph, 11 oz. Ag/T and inceoua sediments and volcanica. minor Cu and Zn.

12. Ecilpae mine group 188 lIE So. Cu, Pb, Ag, Au- Irregular ferruginoua goaean zone with cop Shaft wortonga. Probably pro Schrader, 1915, p. 118 (Olcott or Triangle, Eldon or Can. per and lead carbonaina underlain locally duced a few 100 tons of ore, ABM file data Backbone; Sininfeld & Co.) 24 hydlaaeminaind andmaaalve chalcoclin and mainly prior in 1900, averaging No. argenHferoua galeoa in pyrometaaomatic about 10% or more Cu and some Can. replacement deposits along faulted contact high grade Pb—Ag ore. 25 of Paleozoic quartziin and ailicaind lime stone in thrust—faulted block aegmenta.

13. Eigin mine group 188 lIE NW¼ Cu, Ag, Au Irregular pyrometasomatic replacement Shaftand tunnel workings. Pro Heyman, 1958 (General, Dan; Helvetla 23 lenaea of copper carbonates and aulfidea, duced some 40, 000 tuna of ore ABM itle data Copper Co., Michigan- controlled largely by faults, fractures, and averaging about 2% Cu and 0.3 Arizona Development Co., favorable attested Paleozoic limestone, in oz. Ag/T in 1899—1902 and ape— Helvetia Copper Co. of Artz., throat faulted and defonned blocks. radically in 1947—1960. Chflaon, Elgin Meg. Co., Belvetia Meg. Trust, McFarland & Hullinger) ABM date 14. Fafla claim 18S lIE Ceo. Cu, Ag Copper carbonates and aulfide in irregular Shallow ahaft and tunnel. Some file (Lewisohn Copper Co.) 25 pyrometamorphic leoaea in thrust—faulted 170 tuna of ore averaging about aegmenta of aflicaind Paleozoic limestone, 5% Cu and 0.3 oz. Ag/T pro rut by croaa faulting. duced In 1958—1959. Table 4, Cant.

MINING DISTRICT LOCATION MINERAL GEOLOGY TYPE OF OPERATION REFERENCES AND MINES T. R. Sec. PRODUCTS AND PRODUCTION

15. Franklin, Cushing 6, Marion 18S 1SE Sn. Cu, Ag, Au Relatively small, spotty, irregular, and Tunnel workings. Produced ARM file data mine group Cen. ahaltnw pyrometaaumatic depoaita of cnpper some 150 inns of ore averaging (Rosemont group; Lewisohn 25 carbonates and minor sulfides in thrust— about 4% Cu and 2 oz. Ag/T in Estate) faulted, siicated, Palenzoic limestone 1944. blocks.

16. Golden Gate mine group 19S 15E SE¼ Au, Ag, Pb, Zn-, Irregular quartz stringers, lenses, and Numerous small shafts, tim— Schrader, 1915, p. 132 (U. S. Grant; Holiday, Cu- bunches cnntainingpartly oxidized base met nels, adlin, and open cuts. Healwole, 1966 Ramsey, Nunnel, Halbert, NE ¼ al sulfides in fissure veins and replacemenin Worked sporadically from ARM file data Nail, Arizona Mng. & Reing. 12 along tbrust fault cnntacte of Paleozuic lime 1886’s to 1969, producing some Co.) sinne and Creinceous sedimentary forma 206 inns of ore averaging about tions. 1 oz. Au/T, 3 nz. Ag/T, 4% Pb and minor Zn and Cu.

17. Heavy Weight mine uS 15E SE¼ Cu, Ag, Au— (Be) Irregular, pyrometasomatic, replacement Tunnel workings. Produced Schrsder, 1915, p. 110—113 (Light Weight; Helveta 14 nrebodies containing copper carbonates and some 3,000 tons of ore averag Johnson, 1941 Copper Co., Michigan— sulfides in siicifled, garnefized, sboared, ing about 5% Cu and 1.5 oz. Creasey & Quick, 1955, p. 320 Arizona Development Co., and thmssl—fanlted Paleozoic limestone along Ag/T from late 1880’s to 1902. Heyman, 1956 Helvetia Copper Co. of a contact with Laramide quartz latin por Warner et alia, 1959, p. 103 Arizona) phyry intrusive. ARM file data

18. Isle Royal mine group 18S 1SE NW¼ Cu, Ag, Au- Copper carbonates and salfides with cupri— Shafiworkings and surface cuts. Schrader, 1919, p. 108—110 )Helvetla Copper Co., 24 fernus pyrite in deeply oxidized, irregular, 1>3 From early 1880’s to 1912 ape— Johnson, 1941 Michigan-Arizona Develop pipe—like replacement orebodies in an al— radlc production of some 30, 000 Creasey & Quick, 1955, p. 320 ment Co., Helvetla Copper tered Paleoznic limestone block along a tons of ore averaging about 3% ARM file data Co. of Arizona) thrust fault. Some high grade pulverulant Cu and 1 oz. Ag/T. mixture of copper carbonate and chalcocite occurred along strong fracture zones in crushed and siicified limestone.

19. King-Exile mine group 18S 1SE E. Cu, Ag, Zn-, Copper carbonates, oxides, and sulfides Adil and open cut workings. Schrader, 1915, p. 119 (Rosemont Copper Cn., Cen. Pb-, Au, Mo-, with some minor zinc and lead mineraliza Over55,000tons of ore averag Johnson, 1941 Rosemont Development Co., 24 W-, U- )Be) tion in bodded, pyromeinsomatic orebodies ing about 6% Cu, 1 oz. Ag/T Creasey & Quick, 1955 Lewisnhn Estate, Daylight and in massive fracture fillings in silicated and minor Zn and Pb produced Miller, 1955, ARC, PRR A-37 SIng. Co., Maffen, Allison Perminn limesinne along the contact with between early 1900’s and 1959. Heyman, 1958 Steel Co., Chilson) Laramide quartz lam porphyry stock. MIchel, 1959 Sparsely disseminated scheelite, pods of Warner, el ails, 1959, p. 103 molybdenite in late quartz stringers and ARM file date small pockein of pltehblende.

20. Leader mine 189 lIE NW¼ Cu, Ag, Mn, IV-, Banded seams and irregularlenses of pyrn— Shaft and adit workings. Pro Schrader & Hill, 1910, p. 156— )Helvetia Copper Co., 24 Zn-, Au- metasomatic replacement ore containing duced sporadically some 30, 000 157 Michigan-Arizona copper carbonates and aulfides, with con inns of ore averaging about 6% Schrsder, 1915, p. 106—108 Development Co., Helveda siderable cupriferous pyrite, in shattered, Cu, 1 oz. Ag/T and minor Au. Johnson, 1941 Copper Co. of Arizona, siicated, thrust—faulted Paleozoic lime in 1934, about 13 tons of 90% Wilson, 1941, p. 36 Molybdenom inc., Burney, stone along the thnsl fault. Local spotty Mo52 concentrate shipped. Cressey & Quick, 1955, Helvetia Mng. & Mllg. Co.) mnlybdenlte and disseminated scheelite and p. 315—318 powellite. Some minor sphslerite. Heyman, 1958 Warner et alia, 1959, p. 103 ARM file deS,, Ag, an-, L.ilaseupy!ou .. —- 21. Mohawk mine 189 liE NWI Cu, 1880’s. To Johnson, 1941 erite, and copper and zinc carbonates, in from surface inlate (Rosemnnt Copper Co., 23 Au- (Be) 1880’s and Creaaey & Quick, 1955, p. 320 small, Irregular, pyrometesnmatic ore- te] production from Rosemont Development Co., some 50, 000 Hcyrnan, 1908 bodies in xenolith of siicated Paleozoic 1940’s would bo Scott, Lewisohn Estate) about 3% Warner et alia, 1959, p. 103 limestone in Laramlde quarte latite por tens of ore averaging Ag and En. AIIM file date phyry stock within a thrust fault klippe. Cu and minor

Shaftand adit workings. In 1960 AIIM file data Cu, Ag, Au- Oxidized copper mineralization associated 22, Muheim-Grafen mine 189 16E NWk 130 tons of ore with a quartz latite porphyry intrusive dike produced some (Muheim) 31 Cu and 2 in Cretaceous sediments, averaging about 3.5% oz. Ag/T.

and open cuts. From AIIM file date Cu, Ag, Au- Copper carbonates and milfides In Irregular, Tunnel 23. Newman mine 185 15E sw¼ produced some pyrometasomatic, replacement deposits to 1943 to 1948 (Lewisohn Estate, 14 a- silicated Paleozoic limestone intruded by 6,000 tens of ore averaging MacFarlane, Chilson) 0.5 oz. Ag/T. quartz latin porphyry within a thrust fault bout 2% Cu and kllppe.

sul Tunnels and shaft Worked from Schrader, 1915, p. 137—138 16E Ph, Cu, Ag, En, Partly oxidized lead, copper, and zinc 24. New York mine 179 NE¼ and produced sporadical Lee & Borland, 1935 (Sb, F) fides with quartz, calcite, fluorite, pyrite, 1890’s (Beuhman; McMahon, New 29 Mo some 50—100 Brnwne, 1998 and manganese and Iron oxides in shear ly in early 1900’s York Copper Co. I averaging about 6% ABM file date zones in pyrometemnrphnsed Palenznic tons of ore Ag/T. limestone along the contact with Laramide Pb, 4% Cu and 20 oz. quartz mnnznulte intrusive. 1915, 113—114 pyrnmetesomatlc replacement Shafts and cute. One of oldest Schrader, p. 189 lIE No. Cu, Ag, Pb-, irregular 1941 25. Old Dick mine with copper carbonates, mines, producing sporadically Johnson, Cen. En-, Au- orebodiesandplpes 1955, 320 (American; Helvetia Copper and zinc from late 1670’s to 1907 and Creasey & QuIck, p. 23 oxides, and suifides, minor lead Michigan-Arizona to 1952, a probable total of Neyman, 1958 Co., mineralization, and iron oxides in a broken 1938 Development Co., Helvetia 000 tens of ore av AIIM file date and silicated Paleozoic limestone block in at least 20, Copper Co. of Arizona, oz. AgJT truded byquartelatite porphyry, in a thrust eragingabouts%Cu, 1 Helvetia Oil Co., Chilson) Au. fault klippe. and minor Pb and Tunnel workings. Probably Schrsder, 1915, p. 131—132 Cu, Ag Copper carbonates, oxides, and silicates to 26. Old Pap-Old Put mines 189 lIE Cen. of ore averag aflicified, shattered, crushed and tncally some 2,000 tons (finsemont Copper Co.) 25 in late iron steined Paleozoic quartzlte along ing about 5% Cu produced crnss—faults cutting thrust—faulted Paleo— 1800’s and early 1900’s. zoic formations. Tunnel, shaft, and open ruin. Schrader, 1915, p. 115-117 Ag, Pb-, Partly oxidized copper and minor lead—zinc 27. Omega and Omega Extension 189 liE W. Cu, mines, produc— Johnson, 1941 Mn mineralization, largely soft and earthy with One of earliest mines Cen. En—, Au—, 7, 000 Creasey & Quick, 1955, p. 320 manganese and iron oxides, and local mas— tog sporadically some (Eeckendorf, Omega Copper 24 about 6% ABM file data aive chalcopyrite and pyrite, in replacement tons of ore averaging Co., McKay) minor Ph bodies with garnet-magnetite gangue along Cu, 1 oz. Ag/T and a faultzonehetweenPaleozolclimesteneand from 1880’s to 1920. Precambrian granodlorite.

and Shafte, tunnels, and open cuts. Schrader, 1915, p. 129, 130 No. Cu, Ag, Pb-, Copper carbonates, oxides, silicates, 28. Oregon copper, Chicago, and 189 liE surface urea mined in Thomas, 1931 Au- sulphldes with minor lead and zinc mineral Rich Coconino mines Cen. En-, production AIIM file date ization in fault, fracture, and bedding—con 1890’s and sporadic (Rosemont Copper Co., 36 av trolled pyrometasomatic replacement ore— of some 3,000 tens of ore Rosemnnt Development Co., Cu and 1 oz. bodies in crushed and aiicated Palenzoic eraging about 10% Chflsnn) limestone intruded byquarizlatite porphyry Ag/T. in thrust—faulted Paleozoic formations.

kIT kn’ md ?% 3 ci, Cu1

ibt innpd 1919; truufl porpiy. lafl ufl Lnntd.

ore

of

tons 1,500 some tion of by intruded limestone, Palenzoic faulted,

INc-data

ABM

produc

and sporadic ly 1880’s

throat siicified, and — crushed in

zone fault

1940

Pnpoff,

ear in

shipped ore

copper grade along

mineralization copper

oxidized

and

36

Jones)

McFarland,

(Saratoga;

p.

130—131

1915,

Schrader,

Nigh

cute.

open

and

Tunnels

quartz banded oi

pocketa

and

lenses

Small Au- Ag, Cu, NE¾ log lBS mine & Bye Bye Sweet 15.

1% Pb. and 1% Cu

and

Ag/T nz. 22 about eraging orita.

av

of ore inns 200 some ducing granndi Precambrian cutting pyvite, and

pro 1963, in late 1870’s from chalcopyrite, minor galena,

argedtiferoos

Barhre(

Lauterback,

data ifie

AEM

sporadically worked

district,

in and

chalcocita

oxidized parily with

dine,

24

8,

Weigel,

Nan (Old

Frijnle;

p.

119

1915,

Schrader,

property

Oldest

Shafiworkings.

aplite an with

assuciatad vein

fissure

Quartz Au-

Pb, Cu, Ag, SW¾ log 18S mine Spur Silver 34.

14

¾ NE

Division) Limestone

plant

for lime

11

Co., Mining

Rita (Santa

data file

ARM

limestone Producing

Quarry.

limestone.

Paleoznic

marmnlized

Partly Limestone 5E¾ ii uS quarry limestone Rita Santa 33.

1929. in 1900’s early

from oz. Ag/T 40 and 2% Cu, granodiorite. Precambrian cutting vein

5%

Pb, about averaging ore a of in oxidized, partly mnlyboeaite, minor

data INs ABM

inns more or 50

some

of

duction and sphalerite,

gnlena,

rite,

argentifercus

Mn— Au, 21

Corp. &

Metals

(Minerals

p.

126—127

1915,

Schrader, pro

Sporadic

workings. Shaft

chalcupy

pyrite, quartz,

banded,

Tabular, Ag, SE¾ Zn, Cu, Pb, log 18S mine Ridley 32.

1910’s. in late the zones, fault in

and

cnntacta fault

L3 data

file

ABM

produced Ag/T oz. 6 and 8% Cu along porphyry latite

quartz

Laramide

and

Co.

Mng.

Arizona

Southern

1918

Handbook, Mines about

averaging ore

of tons

140 limestone Paleozoic altered

and in

crushed

36

McCleary, group;

(Sweet

p.

129—130

1915,

Schrader, Some

tunnel

workings.

Shaftand

chalcocite and oxides,

carbonates,

Copper ¾ Ag Cu, HZ liE 18S mine Pickwick 31.

quartzite. Paleozoic early tered

shat in mineralization copper disseminated

Au. and Pb Some klippe. fault a thrust in limestone

minor

and 8

Ag/T nz. 0. 2% Zn, Paleozoic

faulted in

thrust beds

favorable

Co.

Mng.

Louden

Green,

5% Cu,

about averaging ore of and faults by guided

deposits

replacement

and Chilaon Hyde,

&

Scott

date

file

ABM

tons

11,000 some of production

pyrometasomatic in selective,

eralization

Co.,

Development

Rosemont

195i

Heyman,

interzniftent 1952, to 1882

From min zinc and lead spotty

sulftdeswithsome

Au- 15

Co.,

Copper

(Rosemont

p.

125

1915,

Schrader,

workings.

cut

and

open

Shaft

and

silicates, oxides,

carbonates, Copper

Pb-, Ag, SEI Cu, Zn, lIE 18S mine Peach 30.

ly. intrusive. porphyry latite quartz with

sporadical produced Au/T oz. in contact and faulting along bed limestone

0.3 and Ag/T loz. 2% Cu, Pb, Cretaceoua garnetized, in dark, a posits

data file AEM

2% about ore averaging of inns replacementde

pyrometaaomatic irregular

Andrade)

1935

& Borland, Lee

150 some

1952, to

1992

in yrom

molybdenum,

spotty with

mineralization,

(Sb( Mo- Au—,

27

mine; Sulpinde

(Hayward’s

p.

138

1915,

Schrader,

workings.

and

surface

Shaft

lead-zinc-copper

oxidized, partly

Handed,

Zn, Cu, Ag, Pb, Cen. l6E 175 mine Pauline 29.

PRODUCTION

AND

R. PRODUCTh Sec. T.

MINES

AND

REFERENCES

OPERATION

OF TYPE

GEOLOGY MINERAL LOCATION DISTRICT MD4NG

Cont. 4, Table Mi. lip 109 mine group - intermittently 1907 (Little Helvetia, Copper Duke; 15 metasomatic replacementorebodies, most cuts. Produced, from late 1890’s to 1936, a to— Schrader, 1915, p. 120-124 Tip Top Copper Co., Am. ly oxidized, with copper mineralization of of over 27, 000 tons of ore Creasey & Quick, 1955, p. 320 Smltg. & Refng. Co., ten associated with quartz stringers and tal Cu and 0.4 ARM file data Chamrod, Forbes. Mattingly. seams in shattered, faulted, silicified, and averaging ahout 5% a con oz. Ag/T. Sierrita Mng. &RanchlngCo., silicated Paieozoic limestone close to Tip Top Mog. Co., D. & P. tact with underlying Paleozoic quartaite in Mng. Co.) a thrust-faulted klippe.

XVII. Horsehoe Basin District (See Quijoina District)

XVIII. Las Guias District (See Arivaca District)

1925, 342, 425 Montezuma (Puerto Blanco 16— 6W Cu, Pb, Zn, Au, Scattered, small deposits of oxidized base Mostly shallow operations Bryan, p. XIX. file data Mias.) District 17S Ag metal suffides in narrow and irregular worked sporadically since from ARM (Puerto Blanco Mins., Sonoyta quartz-calcite veins alongfracture zones in priorto 1900 to the 1930’s. To and us- Mins., Organ Pipe Cactus grsnitic porphyry and metamorphic actuate tal production estimated Nat’l Monument) and phyllites of Mesozoic age. ported as some 1,300 tons con taining about 8% Cu, 5% Pb, 52 oz. Ag/T and minor Au.

I-a cuts. ABM file data 1. Cimarron mine group 17S 6W So. Cu, Ag, Au- Strongfracture zone inMesozoic schist with Shallow shaft and surface (Bernice, Mfiton—Sturges, Cen. granitic porphyry intrusions. Spotty and Ir Worked in 1916—1917 and 1951— Verde groups; Milton-Storges, regular, high grade copper carbonates and 1954. producing some 1, 100 Montana-Arizona Mng. Co.) Protracted strong chloritic alteration in and along tons of ore averaging about 9% quartz stringers. Cu and 4 oz. Ag/T.

2. Victoria mine 17S 6W Cen. Pb, Ag, Cu, Au, Base metal carbonates with silver chlorides Shafts and glory hole. Prior to ABM file data (La Americana; Ortega; Levy, 24 Zn and argentite in irregular and spotty occur 1900, some $80, 000 of high Knight) Protracted rences associated with quartz—calcite fis grade Pb-Ag ore shipped, in sure veins in Mesozoic schist cut by Meso 1915—1918 and in 1935 some 50 zoic granitic porphyry intrusives. tons of ore averaging nearly 600 oz. Ag/T, 58% Pb, 4% Cu and 0.2 oz. Au/T was produced,

166—180 XX. Old Baidy District 19S 14 Cu, Ag, Au, Mo- 1. Scattered, small, and relatively weak, Scattered, small, and generauy Schrader, 1915, p. (Central to southern Santa 15E partly oxidized, copper and local molyb— shallow prospects and mines Drewes, 1968, 1971a, 1972b, Rita Mins.) denOte mineralization in quartz fissure zones worked intermittently since the 1973 in Mesozoic volcanics and Laramide Intru— 1880’s. Totalestimated and re ARM file data sivea. ported production not more than 2. Gold placer deposits in alluvial cone in a few hundred tons of sorted Madera Canyon. high grade copper ore. Consid erable placer gold recovered in late 1880’s.

Schrader, 1915, 1. Jackson mine group 19S 14E SEc Cu, Ag, Au Compound quartz—fissure vein and stock— Shafts and tunnels. Produced p. 171-172 (Iron Mask; Old Rickory 24 work with copper carbonates and sulfides, intermittently some 200 tons of Mines Handbook, 1920 Copper Co., Parber) cutting a Laramide granodiorite intrusive, picked 9% Cu and 3 01. AWT ARM file data Some disseminated chalcocite in the wall ore, mainly in 1915—1919. rock. Table 4, Coot.

MINING DISThICT LOCATION MINERAL GEOLOGY TTPE OF OPERATION REFERENCES AND MINES T. R. Sec. PRODUCTS AND PRODUCTION

lUff, Oracle (Control, Old Rat, uS 11- ——— Co, Ag, Pb, Zn, 1. Irregular copper aulfidea withlocal dia— Numerous relatively shallow Peinraoo Li Creaaey, 1943 Santa Catalina) District 16E Ao, W aeminaind acheeliin in pyrometaaomatio re adiin, innoeta, and ahafts Braun, 1969 (North alope of Santa Catalina placomeot deposits in folded and faulind worked sporadically since the ABM file data Mba.) Paleozoic limestone intruded by Laramide early 1900’s. Total production qoartz dioriin to qoartz moozoniin intrusive. op thru 1972 haa beeo some 2. trregolarlead, zinc, andcopperaalfidea, 136, 000 inns of ore containing with minor oxidatiooproducta, in pyromein— about 3,000 taos of copper, 94 somatic replacemeota along afaolt in Cam inns of lead, 20 tons of zinc, brian Abrigo Formation oear Laramide lii, 000 ouncea of silver and quartz diorlin intrusive. 387 ounces of gold. 3. Quartzveinawithapotty gold or acheeinin mineralization in Precambrian or Laramide metamorphica or intruaivea.

1. Bluff mine group uS 16E So. Pb, Zn, Ag, Cu—, Spotty and irregular, partly oxidized, lead, Tunnel workings. Sporadic pro ABM file data (Combs, Hill) Ceo. Au- zinc, and minor copper aullidea in replace- duction 1991—1917 of some SO 13 ment deposits in Paleozic limestone. boa of ore averaging about 13% Ph, 3% Zn, 3 oz. Ag/T andmi nor Cu and Au.

Ct3 2. Corregedor mine 313 16E Ceo. W Shallow, spotty acheelita in a metamor Shallow ahafin. Some 100 tons Petarano & Creaaey, 1943 (Wella, Arizona C Copper 15 phoaed Precambrian quartziin lena near the of 4% WO3 produced in 1940’a. Dale et am, 1961, p. 116—117 Minea, inc.) coctact with Laramide quartz dorm intru sive.

3. Daily mine uS leE SW¼ Cu, Ag, Au-, W- Chalcopyriin, pyriin, and minor diasemin Aditand incline ahaft workioga. Peinrano & Creaaey, 1943 (Daily Arizona Copper Co., 16 aind acheelita aaaociatad with irregular Some 21, 000 inna of ore averag Dale et alia, 1961, p. 116—118 Daily Minea Co., Catalina SE ¼ akarn zones of pyrnmetamorphec replace ing about 3% Cu, 0.8 oz. Ag/T, Braun, 1969 Cuuaol. Copper Co., Control 17 ments in tmcturallydeformed andmarhle and minor Au mined, mainly ABM file data Mines, inc., Control Miuea lized Paleozoic limestone along the contact from 1937—1947. Co., Arizona Copper Minea, with intmaive Laramide quartz diorita. inc., Continental Mainriala, Croaa—cutting lamprophyre, alaakiin, and inc. quanta dinea.

4. Geeaman mine group uS leE E. Cu, Ag, Au-, W- Chalcopyrita, borcita, chalcneiin, covel Adit and shaft workings. Some Peinraoo Li Creasey, 1943 (Phelpa Dodge Corp., Catalina Can. un, and apotty, diaaeminatad acheelita as— 111,000 taos of ore averaging Dale at alia, 1961, p. 116—118 Consul. Copper Co., Control 17 aociatadwithirregular akarnzooea of pyro— about 2% Cu, 0.6 nz. AWT and Braun, 1969 Mines, inc., Control Mines metamorphic replacementa in structurally minor gold produced, mainly ABM file data Co., Arizona Copper Mines, deformed and marbleized Paleozoic lime- from 1937—1948. One ton of 11% Inc., Continental Matariala, atone along the cnonctwithintruaive Lara WO3 ore produced in 1940’a. inc.) mide quarta diorita. Croaa—cutting tampro— phyre and alaaklta dinea.

0. Hartinan-Romeatake minea 115 1OE NW¼ Pb, Zn, Cu, Ag Partly oxidized, base metal aullidea and py Adit and winze wnrldnga. Some Petaraon Li Creaaey, 1943 (Adama, Shaekiin( 18 rita in akaru, gouge, and breccia along 600 boa of ore averaging about Braun, 1969 strung fault zone and in adjacent metamor— 5% Ph, 3% Zn, 3% Cu, and 30 ABM file data phoaed CambrianAbrign Formation close in produced in 1947- Partly oxidized copper sulfides in calcite AGits ann open ps. mine group 115 iCE Cen. Cu, Ag, Au, Pb- about 5% Braun, 1969 6. Leatherwood veinlets and disseminated in skarn in pyro— tons of ore, averaging group; Phelps Dodge 20 and minor Au ABM ifie data (Apache metamorphosed Paieozoic limestone close Cu, 1.5 oz. Ag/T Catalina Consol. Corp., the contactwith Laramide quartz diorite. and Pb, produced intermittently Co., Control Mines, to Copper Lamprophyre dikes. from 1939 to 1968. inc., Control Mines Co., Sanford, Arizona Copper Mines. Inc.) adits. Peterson & Creasey, 1943 Thin fracture fillings and disseminations of incline shaftand prospect mine uS iCE NW¼ Cu, Ag, Au-, tons of high Braun, 1969 7. Stratton chalcopyrita and pyrite with skarn in pyro— A few hand sorted Hat; Stratton Copper Co., 20 Mo- the past. ABM file data (Old metamorphosed Paleozoic limestone along grade ore shipped in Stratton Consol. Copper Co.) a bedding plane fault. Bornite and molyb denite associated with quartz in depth. et slia, 1961, 112—113 and small clusters of schee— Adits and shaft. Developed orig— Date p. uS ICE I. W, Cu, Ag, Au— Scatteredlarge for cop— 8. Taylor X claims lite in an irregular, metamorphosed, and inally in early 1900’s Taylor, Standard Tungsten Cen. Afew tons sheared quartzitic zone, possibly Precam— per, silver, and gold. Corp.) 18 produce brian or Cambrian, near the contact of Pan— of ore hand-sorted to in 1948 cambrian granite and Laramide quartz di- 36% WO3 concentrates W03 pro orita. sod 45 tons of 1—5% duced in 1953,

small mines sod pros Ransome, 1922 Zn, 1. Bands of folded and faulted Paleozoic and Mainly (Sierrita) District 17— 10— Ag, Pb, Cu, sporadically since Drewes ii Cooper, 1973 20(11. Papago Mesozoic sedimentary and volcanic forma pects worked side of Sierrita Mins.) 18S liE Mn, Mo—, F, U— and re (West intruded by Mesozoic and Laramide 1870’s. Total estimated tions would be granitic intrustves. Spottybase and precious ported mine production deposits, largely oxidized, with mi some 5,000 tons of ore contain metal of sil local molybdenum and traces of urani ing about 30, 000 ounces nor 26 of irregular replacement orebodies or ver, 400 tons of lead, tons um, in and 100 faults and fractures. copper, 1 ton of zinc, along a thou 2. Gold placers ounces of gold. About gold may have 3. Fluorspar along fault veins. sand ounces of been recovered from placers and a small amount of fluorspar has been shipped. by Allen, M. A., 1922, p. 12 small placer deposits resulting Worked mainly prior to 1900 Canyon 18S 1OE 12 Au Relatively small extent Wilson, E. D., 1961, p. 80 1. Ash CreekandPascola from weathering and erosion of mineralized Mexicans and to a gold placers Total es ABM file data veins and replacement bodies. in 1930’s and 1940’s. timated production not more than a few 1,000 ounces. open cuts. Ransome, 1922, p. 416-417 Veins and replacement lenses of oxidized Adits, shafts, and Aguinaldo mine group 175 iCE SE Pb, Ag, Mn, Cu, for silver Farnham et alia, 1961, p. 119— 2. manganese, pyrita, galena, andminor chsl— Originally worked (Hump, Purcell; Agulnaldo 26 Au—, Mo- wIth minor spo 121 copyrite, molybdenite, and wulfenite in prior to 1900 Co.) production. ARM file data Mining fractured and metamorphosed Psleozoic radic, subsequent than 100 tons limestone. Probably not more of high grade lead—silver ore produced plus some copper and hand—picked wulfenlte.

1913

and

mainly

produced Au and

Zn,

limestone. Paleozoic metamorphosed

of

Cu,

minor and

Ag/T, 3 on.

Pb,

bands thrust-faulted sinuous

cutting

faults

data the 8% ARM

about

averaging ore,

of tuna

and fractures alnog and veins

fissure

cite

1966

Thoms,

4,000

some 1900 Since

1800’s.

quartz—cal irregular in

covellite and

in,

1933

Higdon, late

to ore

lead-silver

grade bar withpyrite,

teftahedrito

and

argentite,

1926

Handbook,

Mines

high for

chioriders by

Worked

sphalerite,

cerargrrito,

anglesite, site,

(Ba) Au—

12

p.

415

1922,

Ransome,

cute.

open

and

tunnels,

Shaft,

cems

galena,

of

disseminationa and

Pods ¼

Cu,

Ag,

Zn, Pb,

SE log lBS mines & Sunrise Sunshine 8.

Au. minor and

volcanics. and sediments in Mesozoic

Ag/T, 12 on.

Cu, 14%

of tons

61 tofolded beds Paleozoic quartziin.

Paleozoic

some

producing 1919,

to 1905

shattered in

oxides

and carbonates copper

Mines)

Silver

Bird

Yellow

from

sporadically and ore ver

chalcoclin,

argentiferous and

limestone;

27

Co.,

&

101g. Mog.

Silverta data file ABM

lead—sil

grade high for

1800’s

Paleozoic

metamorphosed in

bodies ¼

ment

SE

p.

Co.,

Mng.

Consol.

418 Lincoln 1922,

Ransome,

lain

to

worked and

Prospected

replace

to

spotty

copper

minor

with

erito

Au

26

Providence;

1905 Bird,

(Yellow

Handbook,

Copper

cuts.

open and

tunnels,

Shaft,

aphal— and

galena

argentiferous

Oxidized, Cu,

Zn, SW¼

Ag, Pb,

1OE l7S group mine 7. Lincoln

date file ABM

1940’s.

silica. and

calcite

1971

Elevsturski, in

and

1918-1920 in

shipped

minor with

fluorite of Lenses

dikes.

apliin

p.

11

1950,

Wilson, been

have

may F 80% of ions

asaocinind with

zone

contact

schiat—granitic

34

p.

7

Fluxore)

1921, (Neptune,

Butler, & Mien

few

A

pits.

and

adita,

Shaft,

quartz-mica

Mesozoic

a

along

zone Shear

F

Cen. lIE 17S mine fluorine 6.

dike. a basaltic and granite Mesozoic of zone

contact in vein fracture along piinhdende

sooty and manganese of admixture local

with

fluorite

and

disseminated

chslcnpyriin,

23

1962 Si

Raup,

Granger

Imowo.

production

No

Shaft.

pyriin,

staining,

copper

weak and Spotty U- F-,

Cu-, SE¼

lOZ l7S group Dike Black 5.

copper. minor and ues

val lead good with Ag/T 200z.

over averaging tons

100 some

limestone.

Paleozoic

only

production

Total

1938.

metamorphosed and in fractured

wutteniin

in

1937—

prospectors

by and

and pyriin,

chslcopyriin,

minor and

galena

23

dain

file

ABM

1800’s

in lain

silver

for

riders

argeotiferoua

oxidized

spotty

coninining

Mo-

Au-,

Ceo.

p.

417

1922,

Ransome,

mines

by

ohio—

Worked

pita.

and

Shafts

lenses

replacement

and

veins

Manganiferous

Cu-, Mn, Ag,

Pb, So. liZ 175 Johnny Johnny-Little Big 4.

Au. minor

2% and Cu, Ph, 40-10% Ag/T,

on. 60 about averaging inos

limestone.

700 some be

would

production

Paleozuic metamorphosed and

sheared

sporadic Total

1900’s. early

in

aphalerite

and

tetrahedrite,

copyrite,

Cu.)

data Mug.

me

ABM Sierrib

and

1800’s

in late ore

silver

chal

pyrite,

spotty and

galeoa

gentiferous

Banner

Co.,

1966 Mug.

Thoms, Hagenoan

high—grade

produced

Cifioriders ar

disseminated

with

veins

quartz-calcite

Cu-

2

p.

41l—.oi6 Francis

1922, Hughes;

Ransome, (Olympia,

workings.

shaft

and

Tunnel

lenticular

and

stranded,

narrow,

Oxidized, Au-, Zn,

Ag, Pb. SZ¼

liE 185 group mine banner 3.

PRODUCTION

AND

PRODUCTS Sec. R. T.

MINES REFERENCES AND

OPERATION OF

TYPE

OEOLOGY

MINERAL

LOCATION DISTRICT MININO

Coot. 4, Table tempecaune (Olive, Mineral Hill, 16— 11— Cu, Pb, Zn, Ag, 1. SmaLl, snauow-seateu, low lOCh. Pima oxidized, ground mines and prospects, Wilson, 1. LI., 1950, p. 39—51 Twin Buttes) District 18S 13E Au, Mo, W fissure veins with spotty, partly rich gold and large open pit operations. Lacy, 1959 (East side of Slerrfta Mtns.) base metal sulfides and relatively and silver values, in faults and fractures in Total estimated and reported Cooper, 1960 Cretaceous sedimentary formations and an production, up through 1972, ABM file data desite tehusives within the San Xavier thrust would be some 369, 707,400 tons sheet. of ore containing 2. 1 millIon 2. Pyrometasomatlc deposits with copper tons of copper. 42 thousand tons and/or lead—zinc mineralization in suet— of lead, 116 thousand tons of fled Paleozoic limestone, often associated zinc, 31 million ounces of sil with fault contacts and bordering Laramide ver, 53.7 thousand ounces of intrusions. gold and 33 thousand tons of 3. Large Irregular disseminated copper molybdenum. orebodies with minor or considerable molybdenite and locally minor sphnlerlte and galena in pyrometemorphoeed sedimentary and volcanic formations or in complex intru slves.

fissure zones Shalt and tunnel workings. Some Mines Handbook, 1922 Alpha mine 17S 121 SE ¾ Cu, Ag, Au—, Pb, Mineralized, partly oxidized, 1. and 70,000 tons of ore, averaging Mayuga, 1942 (Pima and Fries groups; Alpha 15 Zn— with spotty copper—silver, lead-silver, mineralization in brec about6%Cu, loz. Ag/T and mi ABM file data Copper Co. • Pima Mng. Co.) local pyrite-gold dated Cretaceous sediments of San Xavier nor Pb and Au, produced spo thrust sheet. radically from 1876 to 1954.

metal sulfides Shalt workings. Some 125 tons ABM ifie data Arizona No. 3 mine 17S 12E No. Pb, Ag, Zn, Cu-, Spotty, partly oxidized, base 2. veins Cre— of ore averaging about 12% Pb, (Dogtown; ml!, Thornel Co. Cen. Au- in narrow, Irregular fissure in San Xavier 2% Zn, 0. 5% Cu, 47 oz, Ag/T, Inc.) 21 taceous volcanics within the thrust sheet. and minor Au produced in 1948— 1949, 1952, and 1966.

lead— Shalt workings, intermittent Brown, 1926 mine 185 12E SW¼ Zn, Cu, Pb, Ag, Partly oxidized zinc—copper and minor 3. Contention production 1919—1947 of some Whitcomb, 1948 (North Star; Twin Buttes Mug. 1 Mn,Au silver mineralization in lenticular orebodies to silt— 8,000 tons of ore averaging a- Houser, 1949 Smltg. Co., Bush-Baxter along closely spaced fissure veins 6 bout 11% Zn, 2% Cu, 1% Pb and Wilson, I. LI., 1950, p. 50—51 Co., Glance Mug. Co., cated and garnetized, Paleozoic limestone Mng. py 2 oz. Ag/T. Cummings & Romslo, 1950 A. S. & R. Co., Midland along a strong fault zone. Considerable with the ABM file data Copper Co., Foy, Amuran rite, pyrrhotite, and specularite Mug. Co., Banner Mug. Co.) ore. Shaft workings from Minnie Cummings & Romslo, 1950 Butte mine 17S 121 SE)c Cu, Ag Small zone of chalcopyrite mineralization 4. Copper lime— mine and Butte shalt. Possibly ABM file data (Twin Buttes Mug. & Smitg. 36 In fractured, garnetized, Paleozoic with Pre- some 200 tons of ore, averag Co., Bush & Baxter, Foy) stone near or at a fault contact cambrian granite at the border of Minnie log about 3% Cu, produced in claim. Other slightly mineralized garneti— 1929. ferous zones eastward along the limestone— granite fault contact. Shaftworkings. From 1905 thru Ransome, 1922, p. 425—426 Glance mIne 185 13E No. Cu, Ag, Pb—, Slightly oxidized, near surface enriched, 5. Copper 1957, IntermIttent production Mines Handbook, 1916, 1920 (Baxter, Twin Buttes Mug. & Ceo. Zn—, Au- large Irregular orebodies of ehaicopyrite, sphal— totalled some 186,000 tons of Brown, 1926 Smug. Co., Bush & Baxter 6 bornlte, pyrite, andminorgalenaand chlorite, and ore averaging about 7% Cu and Cummings & Romslo, 1950 Mug. Co., Glance Mng. Co., erite with garnet, magnetite, pyrometasomatlzed 1 oz. Ag/T. ABM ifie data Midland Copper Co., Foy, actinolite in selective, Paieozolc limestone beds Amuran Mug. Co. • Banner and brecciated, Precambrian gran Mug. Co.) along a faultcontactwith ite. Some mineralization controlled by fl sores. Table 4, Coot.

MD4D1G DISThICT LOCATION MINERAL OEOLOOY TYPE OF OPERATION REFERENCES AND MINES T. R. Sec. PRODUCTS AND PRODUCTION

6. Copper King mine 1SS 13E NW ¼ En, Pb, Ag, Cu, Irregular, lenaing copper and zinc carbon Shaft workinga. Poasibly aome Brown, 1926 (Baxter, Twin Buttea Mng. & 6 Au- ate orea along fiaaure veina in parily gar 100 tens of 12% Cu ore produced Wininomb, 1948 Smltg. Co., Midland Copper netized Paleozoic llmeainne. in the early 1900’s as well sa Wilson, E. D., 1950, p. 50 Co., Foy) 2, 183 tona of 17—l4%En in 1912. Cummings & Romalo, 1950 ABM file date

7. Copper Queen mine 18S lIE NW¾ Cu, Ag, Pb—, Series of relatively large copper sulfide Shaft workings. From early Ransome, 1922, p. 425-416 (Baxter, Twin Buttes Mng. & 6 En—, Au-, Mo—, orebodiesalongbeddingplanesandaaheared 1900’s thru 1957, some 122, 000 Brown, 1926 Smltg. Co., Bush & Baxter W- fault coninct zone in garnethed and ailicaind, tuna of ore, averaging about Mines Handbook, 1926 Mug. Co., Midland Copper pyrnmetamorphosed Paleozoic limeainne. 4.2% Cu, 1 oz. Ag/T and minor Wtutcnmb, 1948 Co., Foy, Banner Mng. Co. Some enrichment. Precambrian granite En and Pb, produced intermit Cummings & Romain, 1950 Amuran Mug. Co. I somewhat mineralized also. tently. ABM file date Cowboy 8. mine lBS 12E So. Cu, Ag, Mn Reintively weak and spotty copper and mo Shalt workings. Developed a— ABM file date (Cowboy Mug. &SmeltingCo., Cen. lybdenum mineralization, with pyrite, along rnund 1917—1919 and mined in Sierrite Rug. & Ranching Co.( 7 a fault zone in Laramide intrusive grano— 1947, producing some 1,700 dicrite and dinrite. tons of ore averaging about 2% Cu and 0.3 oz. Ag/T. 9. Crown King & Tiger mine lBS 12E So. Ph, Cu, Ag, Zn, Spotty, base metal aulfides, partly oxidized, Numerous small shafts and pita. Copper Handbook, 1908, groups 1912— (Sneider group; Cen. Au- in irregular quartz veins along faults and Worked intermittently from 1913, 1920 Chesterfield Copper Co., 16 fractures in Cretacenue sedimeninry—vol— early 1900’s in about 1917, pro ABM ifie date Blanche Rose Mug. Co., No. canic formations intruded by Laramide quart ducing some 360 inns of ore av Magnate Copper Co. Ceo. monzonite porphyry and andesite dines and eraging about 7% Pb, 4% Cu, 13 21 plugs. cz. Ag/T and minor Au. W. Ceo. 15

10. mine CWT 17S 12E NW ¼ Zn, Cu, Pb, Ag Irregular replacemeutlensea of zinc and mi 1,000 foot shaft workings. Pro ABM file date (Continental Materials Corp. 21 nor copper and lead in fractured Paleuzoic duced some 69, 000 inns of ore, limesinne near the bottom of the San Xavier averaging about 4% Zn, 0.5 oz. thrust sheet. Ag/T and minor Cu and Pb, in 1967.

11. Daisy mine lOS lIE SW¼ Cu, Ag, Zn-, Parily oxidized, roughly banded and zoned, Shaft and open pit workings. Storms & Bowman, 1957 (Banner Mng. Cu., Pima Mug. 36 Pb-, Au-, W-, pyromeinsomatic orebody of magneinin, py— From underground mining, MacKenzie, 1959 Co. l7S lIE NW¼ Mo— rite, chalcopyrite—borulte, aphalerite, and 1954—1962, some 122, 000 inns Bowman, 1963 galena in garuetized Palenzoic lbnesinue a— of ore averaging about 3% Cu, ABM file date long the contectwlth Laramide quarin moo— 0.5 oz. Ag/T and some En and zonite. Minor molybdenite and tungeten Pb produced. From 1962—1963, present. Mineral Hill fault an important con Pima Mug. Co. produced from trolling structure. tin open pit some 3. 2 million inns averaging about 0.8% Cu, 0.1 oz. Ag/T and some Zn and Partly oxidized, relatively weak 550 iT- numerous reiauvey su 12. Esperanza mine group fold) 18S 12E So. Pb, Zn, Cu, Ag, 1912—1913 regular, quartz—calcite fissure veins con shafts, adits, pita and small (At various times included the Au, Mo— Ransome, 1922, 427 taining spotty galena, sphaierlte and chal— open cuts. Originally pros p. Hughes, Snyder, Costillo, Taintor, 1047 copyrite in Cretaceous sedimentary—volcan pected in Spanish colonial times Wheeler-Perry, and Magnet intermittent produc Anderson & Kupfer, 1945 So. ic rocks. Locally low grade, disseminated but main Copper groups and the Crown early 19008 through ABM file data 16 copper and molybdenum mineralization in tion, from King and Tiger mines; on a small scale, was a— No. siliceous, brecciated Laramide quartz moo— 1943, Chesterfield Copper Co., rocks, and bout2, 000 tons of ore averaging Elston Esperanza Co., 17 zoom porphyry, Cretaceous quartz masses. some 12% Pb, 4% Cu, 12 oz. Blanche Rose Mng. Co., Pike, No. Zn and gold. Cen. Ag!T and minor Magnet Copper Co.) production under 21 For later Duval, see Esperanza open pit mines. 1959 Anderson 8 Kupfer, 1945 Cu, Mo, Ag, Au, Disseminated copper sulfides, oxides, and Open pit operations. From 13. Esperanza Open Pit mines 18S 121 SE4 Tainter, 1947 Pb-, Zn-, (U-) carbonates with molybdenite and minor lead through 1972, some 59 million (Esperanra, West Esperanza; about 0.5% Schmitt et alia, 1959 NW and zinc mineralization, and traces of icr tons of ore averaging Duvsi Sulphur & Potash Co., ¾ 0,04 oz. Ag/T Lynch, 1966, 1967 16 bernite, in brecciated, fissured, and joint Cu, 0.017% Mo, Duval Corp.) Au, and Pb has ABM file data NE ¾ ed, strongly altered, Laramide intrusive and minor Zn 17 complexof quartz latin in andesite invading heen produced. Triassic to Cretaceous volcanics. Worked inter ABM file data 18S 121 E. Pb, Zn, Cu, Ag, Spotty and irregular, partly oxidized, lead, Shaft operations. 14. High Hill mine mittently 1931—1954, producing Anderson, Cen. Au zinc, and copper mineralization in quartz (Costello, Paly & and some 1,200 tons of ore averag Molybdenum & 19 shear veins cutting Laramide volcanics Amargosa ing about 4% Pb, 3% Zn, 2% Cu, Wilson) w. diorite intrusive. Copper Co., 3 AgIT and 0.07 oz, Au/T. 8 Con. oz. 20 c.q oxidized, base metal sulfides Shallow shafts and adits. Small ABM file data 15. Keystone mine 18S liE E. Au, Ag, Pb-, Spotty, partly inTriassic and Crc— intermittent production, 1921— (Golden Fleece; McGee, Cen. Cu—, Zn— in quartz fissure zone Laramide andesite 1956, of some 170 tons of ore Sierrita Mng. &RanchingCo.) taceous volcanics, cut by dikes. Near surface enrichment of gold and averaging about 1 oz. Au/T, 3 w. minor Cu. Cen. silver. oz. Ag/T, 1% Pb and 10 Dale et alia, 1960, 93, 94 Cu, Ag, W Irregular and small, largely oxidized, pyro Shaft operations. Sporadic pro p. 16. Lone Valley mine group 17S 12E 51¾ ABM file data 25 metasomatic deposits containing copper and duction, 1911 to mid 1940’s, (Serasio group; Pemberton, hundred tons of 131 Sw¾ sporadic scheelite, mainly along small veins yielding a few Serasio) 3 to 7% Cu and a 30 and shear zones inPaleozoic limestone and ore averaging quartzite, near the contact with Lsramide few ounces Ag. About 20 tons of quartz monzonite intrusive. 4% WI)3 also reported shipped. 1948, some ABM ifie data 121 No. Zn, Pb, Cu, Ag, Spotty, largely oxidized, zinc, lead, and incline shafts. In 17. Marconi mine group 18S about Cen. Au- minor copper mineralization along strong 350 inns of ore, averaging (Hilzinger) and 12 fracture zones in Creteceous arkose and 6% Zn, 3% Pb, 2 oz. Ag/T conglomerate. minor Cu and Au, produced. Shaft operations. Worked spo Ransome, 1922, p. 419—421 Hill mine 16S 121 So.4 Cu, Ag, Au, Pb-, Sporadic and Irregular, pyrometasomatic, 18. Mineral radically 1880’s to 1959, pro Mines Handbook, 1918, 1920, (Emperor Copper Co., 35 Zn-, Mo-, W and manto replacement orebodies, partly minor lead ducing an estimated and report 1925, 1926, 1931 Mineral Hill Mng. Co., 175 121 No.4 oxidized, of copper sulfides with Paleo— ed tonnage of over 605, 000 tons Manuga, 1942 Copper King Co., Azurita and zinc in garnetized or brecciated fracture of ore averaging about 2% Cu, Storms & Bowman, 1957 Copper & Gold Co., Mineral zoic limestone, often at fault and in 0.5 oz. AgIT and minor Au, MacKensie, 1959 Consol. Copper Co., intersections and near or on a Laramide Hill Dale et alia, 1960, p. 93—98 Barnsdall Corp., Banner trusive contact. Spotty scheelite and molyb denite with pyrite in garnetized zones. Bowman, 1963 Mng. Co.) ABM tile data Table 4, Coot.

MINING NSThICT LOCATION MINERAL GEOLOGY TYPE OF OPERATION AND MINES REFERENCES T. R. Sen. PRODUCTS AND PRODUCTION 19. Minnie mine 175 12E Sn. Cu, Ag, Au Cnpper carbonate above and sulfides below Shaft operations. Worked spo Ransome, 1922, (Venus group, Arizona Buttes p. 425—426 Ceo. in Irregular, pyrometesomatic orebodies in radically from early 1900’s to Brown, 1926 group; Bush & Baxter Mng. 36 Palenznic limestone and burdening quartzite 1929, producing some 63, 000 Rouser, 1949 Co., A. S. & R. Co., Buttes alnng a fault content with Precambrian inns of ore averaging about Cummings Copper Co.) 6.5% & Romalo, 1950 granite. Cu, 1.5 oz. Ag/T and minor Au. ABM file date 29. Missinn mine 16S lIE E. Cu, Ag, Zn, Mn-, Seams and disseminatiuns of copper car Open pit operation. From 1961 Richard & Courtwright, 1959 (East Ptma; A. S. & R. Co.) Cen. Pb-, Au-, Sn-, bonates and sulfides with minor zinc, lead, through 1972, produced over Shillings Mining Review, 1961, 36 W-, F- and molybdenum mineralization in a pyrn 77.6 million inns of ore averag 1962 lOS 13E W. metesomatin deposit in altered, complexly ing about 0.7% Cu, 0.13 oz. Eng. Min. Jour., 1962 Cen. folded, and faulted Paleozoin limestone and Ag/T and considerable by-prod Gale, 1965 31 Trlassic sedimentary and volcanic fonna uct Zn, Mo and Pb. Very lithe Kteneson, 1966 tions intruded by Laramide and Tertiary in— gold. ABM file date trusivee. Thin secondary enrichment zone.

21. New Years Eve mine lOS lIE So. Cu, Ag, Mo Erratic seams, bunches, and dissemina— Shaft and adit operations. From Anderson & Eupfer, 1943 (Snyder group, Red Carbonate, Ceo. tiens of copper carbonates and copper and early 1900’s to 1955, produced ABM ifie date Amargosa; Snyder, molybdenum sulfides in breceisted, quartz sporadically some 2,600 tens of Gastellum, Amsrgosa Itic rocks intruded by Larsmide quartz moo ore averaging about 4% Cu, 0.3 Molybdenum Co., General zonite porphyry. oz. Ag/Tand minor Au and Mo. Mines, Ltd.) Now partofEsperanzaOpen Pit. 22. Ollvetie and Annette mines 17S 12E W. Ag, Ph, Zn, Cu-, Argentiferous bornite, ehulnopyrite, chul Shsftoperations. Total estimat Ransome, 1922, 423—424 (Olive, New Olivette, Corda p. Cl Cen. Au- nocite, tefrahedrite, galens, ephalerite, ed and reported production, Manuga, 1942 Bros. group; Olive Camp Mng. 11 and pyrite, oxidized near the surface with mainly in late 1800’s and early Wilson, E. Co., Anderson) D., 1950, p. 48 rich silver chlorides, in narrow, lensteg, 1900’s by cifioriders, has been Waller, 1960 brecciated, quartz—gouge filied, intersect some 10, 000 tons of ore averag ABM file date ing fissure veins cutting Cretanenus sedi— ing about 10 oz. Ag/T, 5% Pb, menterybeds in the San Xavier thrust block. 1% Zn and minor Cu and Au. 23. Palo Verde mine 168 lIE No. Cu, Ag, Zn, Pb-, Copper, zinc, and minorlead sulfides in ir Shaft operations. Some 480, 000 Bowman, 1963 (Eisenhauer group; Banner Cen. Au-, Mo- regular and spotty high grade lenses, fran tons of ore averaging about 5% Venable, 1963 Mng. Co.) 36 tere vetulete, and dteaemteated in step- Cu, 1 nz. Ag/T, and 1%Zn pro- Gale, 1965 faulted and brecciated garnetierous tectite duced 1960-1963. ABM file date in Paleozoin limestone and marble, close to Lsramide quartz monzonite intrusive and above the thrust fault content with Precam brian granite. Some mineralization, oxide and aulfide, disseminated in overlying Crc— teneous sedimente.

24. Paymaster mine group 17S lIE E. Pb, Ag, Cu, Zn-, Parilyualdized argentiferous galena, tetra— Shaft operations. Worked spo USGS Min. Res., 1905 (Victoria group; Paymaster Cen. Au- hedrite, chalnopyrite, and sphalerlte, with radically from late 1880’s in Ransome, 1922, 413, 424— Mng. Co., Arizona p. Paymaster 16 pyrite and quartz, in spotty and irregular, 1941, producing some 13, 000 425 Mng. Co., Paymaster Consul. complex, ore lenses along fissure zones, tens of ore averaging about 3% Manuga, 1942 Mng. Co., Paymaster Silver assucteted with strung clay and sericite al— Pb, 20 uz. AgJT, 2% Cu and Wilson, E. D., & Lead Cu.) 1950, p. 49—50 terstion in Cretenenus andeeite and andesite minor Au and Zn. Waller, 1960 aeooa end bd! at tbo nfln edge of the N, liii baXavfnthruethultblook above flet ABM file &a in ing. Co.) 38 Zn-, Pb-, Au- minormoiflAmim, aino, and ieadlneral- through 1573, about 104 million Spaulthng, 1354 175 133 No.1 tattoo with a. boil high pade lanai, tone of on, avenging about Thumond, 1555 1 eliabtlr onidleed In upper put, In a mo- 0.35% Cu and 0.35 on. AKIT Tinnond it olin, 1358 metasomatic ore depesit in a structurally with by-product molybdenum, Thurmond 6, Storms, 1958 complex mix of Paleozoic limesinne, Cre— zinc, gold and lead have been Journey, 1959 inceous clastic and volcanic rocks and Lara— produced. Himes, 1971 mide quartz monzonite intrusive. ABM file data

26. Plumed Koight mine group 175 12E Nfl Co, Ag, Zn-, Largely copper carbonates and oxidea in ir Shaft operations. Worked spo Ransome, 1922, p. 419, 421 (Mineral Hill Consol. Copper 2 Pb-, Au- regular replacement lenses along fissured radically from 1917 through ABM file data Co., Chilson, Pioneer Smltg. bedding planes in Palenzoic limesinne. 1919 and in 1947 and 1956, pro Co., Copper Star Mog. Co., Weaker sulfide deposits’in depth. ducing some 20, 000 tons of nrc Plumed Knight Leasing Co.) averaging about 3.1% Cu, 1 oz. Ag/T, 9.4% Zn, 0.2% Pb and minor Au.

27. Prosperity mine group 17S 12E SE¾ Pb, Ag, Zn, Cu, Complex, partiy oxidized, silver-lead- Shaft operations. Worked spo Ransome, 1922, p. 424 (Helmet Peak group, Camden, 10 Au- zinc—copper mineralization, including tet— radically from late 1880’s to Manuga, 1942 Elsie, Tit-for—Tat; SW ¼ rahedrite, tennantite, and pyrrbotite, in in- 1955, producing an estimated Houser, 1949 Prosperity Smltg. & Mng. H regular peckete, lenaea, and pods along and reported total of some 1,000 Wilson, E. D., 1950, p. 49 Co., Helmet Peak Mng. & Ho. fractures zones inbrecclated, altered, Crc— tens averaging about 7% Pb, 7 WaIler, 1960 Milg. Co., Great Northern Con. inceous andesite volcanics and elastic aedi oz. Ag/T, 1% Zn, 0.5% Cu and ABM file data Exploration Co., inc.) 15 mentwithln the SanXavier thruetfault block. minor Au. Most high grade ore mined prior in 1900.

28. Rich Hill mine group 178 lIE Con. Cu, Ag, Pb, Zn, Argentifernua tetrahedrite, galena, sphal Shallow shaft operations. Some Ranaome, 1922, p. 423 (Swastika Mines Co., Swastika 10 Au- erite, and pyrite, parily oxidized, in ir 4,000 tons of ore, averaging a— Mines Handbook, 1926 -1 Copper & Silver Mng. Co., regular, lenaing, vein—like, quarte ore— bout 4% Cu, 6 oz. Ag/T, 2.5% Manuga, 1949 Rich Hill Mng. Co.) bodies along fissure zones and at fissure Pb and minor Au, produced in Wilann, E. D., 1950, p. 48—49 intersections in altered and locally brec termittenily from early 1900’a ABM file data ciated Creteceous aedimente and volcanics to 1925. within the San Xavier thrust-faulted block.

29. San Xavier mine 17S lIE SW¼ Zn, Pb, Ag, Cu-, Irregular, pyrometesomatic replacement, Shaft operations. Worked as Ransom, 1922, P. 422—423 (San Xavier Mng. & Smltg. 2 Au- ore deposits as pipes, lenses, and mantos early as 1700’s for silver and Park, 1929 Co., Myers, Clark, & Rowe with smithsoniin, cerussite, copper car intal estimated and reported in— Maouga, 1942 Co., EmpIre Zinc Co., Eagle bonates, plumbojarosite and limonite, and termittentproduction, mainly in Wilson, E. D,, 1950, p. 46—47 Picher Mng. & Smltg. Co., rich silver chlorides at the surface. Pyrite, 1913—1918 and 1943—1919, would Irvin, 1959 McFarland & Hullinger) sphaieriin, chalcopyrite and galena in depth. be some 800, 000 tons of ore av Wilson, C. A., 1960 Ores largely controlled by fractures and eraging about 10% Zn, 6% Pb, Arnold, 1964 fracture intersections formingbreccia pipes I oz. Ag/T, 0.7% Cu, and mi ABM file data as well as favorable beds in Paleozoic lime nor gold. sinne below a fault contact with mixed Tn assic and Cretaceous sedtments and volcan— ics.

30. San Xavier Extension mine 17S 12E SW¼ Zn, Pb, Ag, Cu-, Irregular, pyrometesomatic, replacement Deep shaft operations, inter Ranaome, 1922, p. 422 (Red Oxide group, Wakefield 2 Au ore deposits as sheets and lenses of parily miftent production, mainly in Park, 1829 group; San Xavier Extension SE¼ oxidized zinc, lead, andcopper mineraliza 1917—1918 and 1943—1944, of Manuga, 1942 Copper Co., Chilson) tion along fractures and bedding in folded some 5,000 tuna of ore averag Wilaoo, E. 0., 1910, p. 47—48 and faulted Paleozoic limesinne. ing about 10% Zn, 2% Pb, 7 oz. ABM file data Ag/T, 1% Cu and minor gold. Table 4, Cont.

MINING DISTRICT LOCATION MINERAL GEOLOGY TYPE OF OPERATION REFERENCES AN]) MINES R. R. Sec. PRODUCTS ANII PRODUCTION

31. San Xavier unit open pit 16S 12E NE¾ Cu, Ag- Stllceous oxidized copper mineralization in Open pit operation. From 1967 ARM INs data (A. S. I, R. Co. 23 Cretsceoua sedimentary rocks under alluv through 1972, produced over NW ¾ ium cover. 521, 000 inns of leaching ore av— 24 eragingaboutO. 76% Cu and 0.02 oz. Ag/T.

32. Senator Morgan mine group l8S l2E SW¾ Cu, Ag, Zn-, Fine grained, pyritic, chalcopyrite min Shaft operations. Worked from Ransoms, 1922, p. 425—427 (Baxter, Twin Buttes Mng. & Pb-, W-, Au- eralization, very little oxidized, in gar— 1890’s in 1918 for copper with Brown, 1926 Smltg. Co., A. S. & R., SE ¾ netized, pyrometasomatic zones, with spot estimated and repertad produc VOsun, E. D., 1941, p. 44—46 Taylor( ty and local scheelite and powellita inqusrtz tion of some 100, 000 tons of 4% Manuga, 1942 veins, localized by faulting, fracturing and Cu, 9 oz. AWT and minor Zn Wliltcomb, 1948 favorable beds in Paleozoin limestane along and Au. About 120 tans of 1.25% Dale et alia, 1960, p. 85—92 a fault contact with Cretaceous sediments. W03 shipped in 1942—1943. ABM INc data Closely associated Laramide granndlnrite porphyry dike.

33. Sierrita open pit mine 18S 12E Sg¾ Cu, Mo, Ag, Zn-, Superficially oxidized, disseminated chal Open pit operation. Starting in ABM me data (Duval Sierrita Corp. Pb-, Au- zopyrita and pyrite with copper and molyb 1S70, production thru 1972 has World Mining, June 1972 SW ¾ denum sulfidea in seams and fractures in a been some 68 million inns of large V—shaped orehody containing fliassic Cu-Mn ore. Aversge grade was NW¾ in late Laramide andesite porphyry, quartz about 1.24% Cu, 0. 03 nz. Ag/T, t;3 17 monzonite, quartz Istita, quartz dinrite, and 0. 016 Mo52 and trace amounts 00 NE ¾ quartz monzouita porphyry as well as a of Au, Pb, and Zn. 18 breccte pipe.

34. Silver Helmet mine 17S 12E W. Pb, Ag, Cu-, Au- Relatively weakand spotty replacement ore Tunnel operation. Worked in ABM INc data (Pemberinn( Cen. of partly oxidized lead and minor copper termittenily, 1912—1918, pro 12 mineralization along a fault contact of Paleo ducing some 100 tons of 6% Pb, zoic limestone and Cretecenus sedimentary 22 oz. Ag/T and minor Cu and beds. Au.

35. South San Xavier mine group 17S 12E Nfl Cu, Pb, Ag, Zn, Irregular, pyrnmetasnmatic, replacement Shaft operations. Sporadic pro Ransoms, 1922, p. 422—423 (Gray Copper, Franklin 10 Au orebodies with siliceous capping and strong duction, early 1900’s in 1947, USGS Min. Res., 1906 group; South San Xavier ganetizatiun, containing partly oxidized of some 2,000 inns of ore av Manuga, 1942 Copper Co., Empire Zinc base metal suffides in Paleoznic limestone eraging about 4% Cu, 4% Pb, 1% ABM ifie data Co., Selim Franklin, Eagle along a strong fault zone and in contact with Zn, 2.Snz. AgJT and minor Au. Picher Mng. IL Smltg. Co. Laramide intrusive.

36. Twin Buttes open pit mine 18S 13E 5W¾ Cu, Ag, Mn, Zn-, Dissemination, fracture filling, and bunchy Openpit operations. Production Paydirt, May 27, 1970 (The Anaconda Co. 5 Pb-, Au- replacementa of copper and molybdenum from 1965 through 1972 amount SkOlinga Mining Review, mineralization, with minor lead and zinc, ed to some 29 million tons of vol. 59, no. 36 oxidized with erratic enrichment in the up ore averaging about 0. 8% Cu, ABM file data per part, in a folded and faulted complex of 0. 1 oz. Ag/T, and minor Mo, Palenznic limestone, siicated limestone, Pb, and Au. and impure argiflacenus limestone; Crete— ceous siltstane, arkose, taffs, and quartz— ma, and Laramide intrusive quartz mon— mittently from early 1000’s in Manuga, 1942 )Vulcan Mng. Co., Vulcan Ceo. Pb-, Zn- zinc mineralization in irregular, strongly 1002, producing some 12,000 ABM file data Consol. Mng. Co., Vulcan 2 gsrnetized, pyromeinsomatic deposiin in close inns of 6—7% Cu and 1.1 oz. Copper & Zinc Mng. Co.) E. folded and faulted Paleozoiclimestone Cen. in the contact with Laramide granodioriin Ag/T. 3 intrusive.

minor cop incline shaft operation. Worked ABM file data 38. Whitcomb mine 175 12E W. Pb, Ag, Cu, Zn, Partly oxidized, lead—silver and sporadIcally from early 1900’s (Whitcomb Mng. & Ofllg. Co., Cen. Au per end zinc mineralization in replacement quartz to 1948, producing some 900 Aaaoc. Mng. & Mug. Co.) 11 lenses, nodules, and pockets along a fissure zone in alinred and brecclated Crc— inns of ore averaging about 8% inceous sedimentary and volcanic rocks Pb, 9 oz. Ag,/T, 0.71% Cu, within San Xavier thrust fault sheet. 0.1% Zn and minor Au.

and local, silver and Numerous, email, relatively Gebhardt, 1931 )GCW. Quijoina District 13— 2 Ag, Au, Cu, Pb, 1. Spotty, irregular, shallow, mines and prospects; Wilson, E. D., 1934 )rev. )Quijoina Mtna., Ben Nevia 16S 3E Zn—, U—, Ba—, gold values with minor, largely oxidized, with spectacular high 1907), 178—179 Min., Sierra Blanca, limesinne, base meinl euliidesinirregularquarin, cal— some p. oxides, and grade silver—gold pockets. Wilson, E. D., 1911, p. 77—78 Brownell Mins.) quartziin din, hematite, manganese gouge along fissure and breccia cones ac- Worked sporadically since ABM file dain campanying strongfaults cutting Cretaceoua 1080’s and up through 1972 have and Tertiary volcanic and sedimentary for— produced some 15,600 tans of mattons. ore containing about 231, 000 2. Spotty and bunchy, oxidized, base metal ounces of silver, 10, 000 ounces sulfidee withenriched precious metals along of gold, 66 inns of copper, and faults andfrscinres cutting Laramide ran- 20 ions of lead. Some 1,400 ‘-I itic intrasives, along Laramide intrusive — ounces of gold have bonn pro— Cs, Cretsceoua or early Tertiary volcanic and duced from dry placer opera— CD sedimentary formation contacin. Traces of toss since 1700’s. uranium mineralization. 3. Gold placer deposits in valley alluvium. 4. Paleozoic timesinne and quartziin in a thrust—faultsilver in tsramide metamorph— ice.

oxidized, irregular, quartz lenses Numeroua proapecin and a few Mines Handbook, 1926 1. Ballaa mine area 155 2Z NE¾ Ag, Pb, Zn, Cu, Largely galena, aphal mines worked sporadically Gebhardt, 1031 )Silver Screen, Baflaa Silver— 14 Au coninining spotty argentlin, pyniin,. and free gold since 1880’s. Probably pro ABM file data Lead; Julian Merger Mines, Protracted cnn, chalcopyrtin, and fracinrea in Lara duced up to 100 tons of ore av inc.) along shear zones mode granitic intrusive. eraging about 200 oz. Ag/T, 8-0% Pb, 1% Cu, and minor Au.

pockety, oxidized, gold—s15- Tunnel and shaft workings. in Sinphens, 1884 2. Ben Lomand mines MS 2E E. Au, Ag, Pb—, Small spotty, in Or— 1880’s produced some 100 inns Mines Handbook, 1926 tnmand Mince) Ceo. Cu—, Zn— ver-lead-copper-zinc mineralization )Mckay; Ben about 10 oz. ABM file data 11 regular and narrow, lcnsing, quartz—cal— of ore averaging 1932 Protracted cite fissure veins in Tertiary siicic volcan— Au/T and 20 oz. Ag/T. in ice, some 200 tans of ore averaging about 10 oz. Au/T, 3 oz. Ag/T, and minor Pb and Cu. Table 4, Cont.

MD4D4O DISTRICT LOCATION MINERAL GEOLOGY TYPE OF OPERATION REFERENCES AND MINES T. R. Sec. PRODUCTS AND PRODUCTION

3. Black Prince mine 145 1E Cen. Ag, Pb, Cu-, Spotty and generally weak, oxidized, argen— Shaft and open cut workings. Mines Handbook, 1922 (Black Prince Metal 13 Zn-, Au- tiferoua galena with minor chalcopyrite, Sporadic production of some SO ABM file data Production Co., Ajo Mines pyrite, and sphalerite in quanta-calcite ormnre inns of ore, from 1880’s Corp.) gangue along a atrong fault zone between in 1924, averaging about 9 oz. Laramide metamorphic gnelaa and schiat Ag/T, 11% Pb, and 1% Co. and faulted Paleozoic (?)llmesinne and Cre— inceous beds. Numerous intrusive dikes.

4. Brownell mine 13S 2E Ceo. Ag, Cu, Au— Irregular and spotty copper oxides and mi Shalt workings with sporadic Copper Handbook, 1906, 1910- (Century-Chief, index groups; 39 nor aulfides, with hematite and pyrite, in production in early 1900’s and 1911 Childa, Brownell Arizona Protracted fracinred and altered Lsramlde sediments 1920’s of some 500 or more tons ARM file data Mng. & Smltg. Co., Producer and volcanics, intruded by igneous dikes and of ore averaging about 3% Co Mng. & Smltg. Co.) plugs. and 9 oz. Ag/T.

S. By Chance mine 14S 2E NE% Ag, Cu, Au- Disseminations and fracture fillings of cop Shalt and open cot operations. Ariz. Dept. of Min. Res. (V. 0.; Childs, Calloway, 12 per carbonates with hematite and ltmonite Produced some 1900 tons of ore file data H. H. Mng. Co.) Protracted in shattered siliceous Laramide rhyolite. averagingsboot 1%Cu and S oz. ABM file data Ag/Tin 1950’s. Sold as smelter flux.

6. Cars Vaca mine 14S 2E W. Au, Ag Oxidized quartz—pyrite stringers with en Shallow shaft operation. Pros ABM file date (Knight) Cen. riched gold and silver along afrscinre zone pected and worked sporadically 29 in Laramide grahatic intrusive. since 1880’s, producing some Protracted 60—100 tons of ore carrying a— C bout 0.5 ozs. each of Au and Ag per inn.

7. Copper Squaw mine 149 3E Cen. Cu, Ag, U- Spotty and weak copper carbonates, minor Shaft, adit, and pit operations Ariz. Dept. of Min. Res. (Andrade, Cooley, Loper) 31 chalcocite, and traces of urophane and ursn with some 60—100 tons of 5% Cu file dste Protracted mite with quartz, calcite, hematite, and and 1 oz. Ag/T produced Inter— Granger & Raup, 1902, p. 29 limonite in a fault zone breccia and gouge mittentiy in late 1940’s and early ABM file date cutting altered Tertiary volcanics. 1950’s.

8. Horseshoe gold placers 15S 2E 13 Au, Ag- ErraticaDy distributed placer gold with Placer operations, mainly by Wilson, E. D., 1061, p. 77—78 (Quljotoa, Gnlconda; Imperial and extending some silver in gravellyalluvium resting on dry methods, worked apersd AHM file date Oold Mng. Co., Manhattan 4—5 miles south csliche—cemented gravel along a mile wide caily since 1700’s and may have Co.) along mountein pediment zone at eastern base of mountains. produced some 6,000 ozs. Au front. and 1, 000 nzs. Ag. Protracted

9. Man’s Dream mine 14S 2E SW% Cu, Ag— Spotty copper oxides and carbonates in Open cut operations. Produced Ariz. Dept of Min. Res. (Cslloway) lenticulsrdepnsiteslongfracinresinashesr some 250 inns of 1.4% Cu ore file date zone cutting Laramide rhyolite porphyry. for smelter flux in late 1950’s. ABM file date

10. Mocking Bird mine group 1SS 2E W. Au, Ag, Pb-, Spotty, free gold and silver chlorides, en Shaft, tunnel, and open cut op Wilson, E. D., 1934 (Rev. (PackRstgrnup; Hadsell, Cen. Cu-, V riched from deeply weathered and oxidized, erations. Worked sporadically 1907), p. 178 Helldnradn Gold & Silver 13 minor, copper and lead mineralization in since 1880’s with production of ABM ifie date Mug. Corp.) I. qun-oaloIS-h.mafib thtngen in a fault some 450 inns of on avenging Can. bnoola eon between Iaramide Inflein abooto.Soe. An/T. los. AWT 14 qnertemoeeonlte endCnteneone volcenlea. sad minor Pb ad C witn snaitanopnoperanons. worxeo nnsuu, 11. Morgan mine group 15S 2E No. Au, Ag, Pb-, Spotty, free gold and silver chlorides intermittently since 1886’s and 1910), p. 179 (Cube Iron; Sinphens—Harford Cen. Cu- minoroxidizedbsse metal sullidesinquartz, mainly in 1931—103i, producing ARM file data Mines, inc., Larrymsde 23 gouge, calcite and iron and manganese ox- some 000 inns of ore averaging Mines Co., Knight, Nedrick) Protracted ides inlenticular lenses along a shear zone in altered Laramide quartz diorlin intru— about 0. 5 oz. /T each of Au and sive. Ag and minor Pb and Cu.

Numerous small shafts, pits, Stephens, 1884 Peerless group 1SS 2E SW¼ Au, Ag, (Ba) Free gold with silver chlorides in oxidized 12. Peer and Sinwart & Pfister, 2960, 35 quartz—calcite—hsrits-hematite pockets in and edits. Worked out in a short 50—51 Protracted Laramide rhyolits volcanics along a fault period In 1880’s. Productiunes— p. zone. timatedatsomesdor more inns ABM file data of high grade gold—silver ore.

ir— Tunnel and pit operations. Ariz. Dept. of Mm. flea. 13. St Patrick mine 14S 2K E. Cu, Ag, Au— Oxidized copper suffides and pyrite in in late 1800’s but file data Wells Copper Co.) Cen. regular fractures in a strongly chioritized Prospected (Covered file data 33 and pyritized fault zone between Laramide main production of some 730 ABM Protracted rhyolitic volcanics and quartz diorite intru— tons of sbout2% Cu, 1 oz. Ag/T, sive. and minor gold in 1956.

Shaft and tunnel operations. Copper Hnndbeok, 1807, 1908 14. Weldon mine 165 2E E. Au, Ag, Pb-, Spotty free gold and silver chlorides with Prospected and worked inter- USGS Min. Roe. 1007 (Weldon ibId It Copper Co.) Cnn. Cu—, Zn— minor, iargelynxidtzed, base metal sulfides Engr. Min. Jour., 1909, vol. 3 inpocketylenses of quartz, hematite, man- mittently since 1880’s to early 87, 103 Protracted ganese oxides, breccia, and gouge along a 1800’s. Eatimatad production p. faultcontact zone between Laramide andesi— could be some 2, 500 inns of ore ARM file data tie volcanica and a granitie intrusive. contalningaboutloz./TeachAu and Ag and minor Cu and Pb.

30CV. Quitobaquito District (See Montezuma District)

copper mtseralization, Numerous pits, shafts, and tan- Raabe, 1850 306271. Redington District 11- 17 Cu, Ag, W-, U— Weak and spotty zones along eels. Some 90 tuna of ore con— McKenna, 1966 (East flsnk of Santa Catalina l3S 18E mostly oxidized; in fracture quartzite and Cre— taining abeut 6 tone of copper Broderiek, 1867 Mine. ( faults in Precambrian tseeeue sediments. Some minor tungsten and 140 ounces silver produced ARM file data occurrences incontactmetamorphosed sed— up through 1972. tments. Traces of uranium minerals, usual ly with iron oxidea, on fractures. Pyrometh— somatic copper mineralization at Korn Kob prospect in south central section 14 and north central section 15, T123, R17E.

weak occur Mostly small prospect pits and Layton, 1917 XXVII. Rincon District 15- 16 Cu, Pb, Ag, Spotty pockets and generally mineralization, tunnels except for open pit clay Weidner, 1957 (Southern Rincon Mtha. lOS 18E Clay, Ba rences of lead and copper mostly oxidized, as contact metamorphic quarries. Some 201 tons of ore Acker, 18i8 deposits and along fisaure sod fault zones containing about 18 tons lead, Kerns, 1958 in thrust and block faulted Precambrian 7 tons copper, 470 ounces sil Metz, 1962 quartcite sod diabaae, Paleozotclimestooe, ver and 112 ounces gold pro ARM file data sod Cretaceous sedimenta, intruded by duced in the district up through Laramide granitic rock. Clay for brick 1972. quarried from Tertiary lake beds along Pentano Wash in south central T16S, R17E. Some harm occurs along fault zones. Table 4, Coot.

MINING DISTRICT LOCATION MINERAL CEO LOGY TYPE OF OPERATION REFERENCES AND MINES T. R. Sec. PRODUCTS AND PRODUCTION xxvm. Rosemont District (See Helvetia—Rosemont Districts)

XXIII. Roakruge District 14— 9 Ag, Cu, Pb, Au— Spotty, acatterd, and generally weak, ox— Mnsily prospects. Some 380 Bikerman, 1965, 1968 (Rnakruge Nina.) OIS 1OE idized silver, copper, lead, and minor gold inns of ore containing about Heindl, 1965 mineralization alungfracture zones inCre— 10,100 ounces silver, 25 tons ANN file data tacenus and Tertiary vnlcanica and aedi- copper, 25 inns lead, and 20 mente. ounces gold produced through 1972.

1. St. Jude mine 15S 9E W. Ag, Cu, Pb-, Argentite andnative silver with minor cop— Shaft workings. Produced some ARM file data )Srlckta, Carpenter) Cen. Au-, (Ba, Mn) per and lead mineralization, manganese, 300 tons of ore, averaging about 17 andbarite in a faultzone cutting Cretaceoue 33 oc. Ag/T, 1% Cu and minor volcanics and sediments, lead and gold in 1933 and 1939.

3001. Santa Rosa ---- District 11- SE Cu, Ag, Au, Pb, Oxidized copper, silver, lead, zinc, and Numerous small prospects and ARM file data (Santa Rosa Nina.) 12S Zn gold mineralization along shear and fault mines, mainly in southwest Protracted znnes in metamorphic achiat intruded by quarter of T11S, ROE and T12S, Larsmide granitic intrusive and in the in RIE, protracted, at north and truaive. Mainly quartz gangue. Andesite southends of Santa Rosa Moun dikes. tains. Total sporadic production from 1916 in 1940 was some 200 t3 tuna of ore containing about 9 tons nf copper, 3,000 ounces of silver, 3. 5 inns of lead, and 60 ounces of gold. 30011. Silver Bell District 11- 7 Cu, Ag, Pb, Zn, 1. Supergeneenricheddepnsitaofchalcncite Shaft, adit, and open pit opera- Barney, 1904 (Silver Bell and West Silver 12S SE Mo, Au, Mn— with minor copper carbonates and silicates finns. Worked since 1873 but Tnlman, 1909 Bell Nina.) in sheeted, closely spaced veinlets and major production from open pits Stewart, 1912 aeama of quartz, with pyrite and chalco— after 1953. Total estimated and Shoemaker & Somers, 1924 pyrite, in hydrnthermatly altered Laramide reported output through 1972 Richard & Courtright, 1954, alaskite, mnnznnite, and some dacite por- would be aome 61.2 million inns 1966 phyry. of ore containing about 504.4 Kerr, 1961 2. Diaaeminated, parily oxidized, chalco- thousand ions of copper, 24 Agenbruad, 1962 pyrite, and minor galena and aphalerite, in thousand inns of zinc, 900 tons Clarke, 1966 pyrnmetnsnmifized Palenzoic limeainne and of lead, 5.3 million ounces of quarizite pendanta in Laramide intrusivea. ailverand 1, 490 ounces of gold. 1. Pyrnmetaaomatic mantus, pods, and lenses of zinc, copper, and lead carbonates and auffidea in a ganetized Palenznio lime stone block. Ore controlled by faults, bed ding, and andesite dikes. 4. Spotty copper oxides, minor wuffenite, and manganese andiron oxides inlimy Crc— taoeuua and interhedded Permian iimesinne and quartzitea along a fault zone. Often as sociated with andesite porphyry intruaivea. mannes, puua, anu 1. Atlas mine uS 8E E. Zn, Cu, Ag, Au, Pyrometasomatsc miner lesd carbonates Worked since early 1900’s but Agenbrnad, 1962 (Atlas Mng. Co. • Atlas Mines Ceo. Pb- of zinc, copper, and by faults, bedding mainly from 1947, producing ABM file data inc., B. S. uK. Mng. Co.) 32 and aulfides, conteuiled planes, and intrusive dikes in garnetized some 147. 5 thousand tons of ore Paleezeic limestone bordering Laramide averaging about 16% Zn, 1.3% slaskite and daclin porphyry intrusive. Cu, 0.6 on. Ag/T and minor Pb and Au.

parily ox Prospected and worked aince USGS Min. Res., 1905, p. 153 2. El Tire mine uS ig SW Cu, Ag, Pb-, Irregular pyromeinaumatic, lain 1800’s and developed from USGS Min. flea., 1907, p. uie (Red Rock group; Cleveland— 33 Au- idized, copper urebndies in a garnetized and block in con— Daisy and Kurtz sham. Under Stewart, 1912 Arizona Mng. Co., El Tire 12S SE NW% sheared Paleozoic limestone dacite por ground mine operatedunil 1931, Mines Handbook, 1918 Copper Co., El Tire Leasing inct with Laramide alaakiin, producing some 203. 5 thousand Shoemaker & Summers, 1924 Co., Williams, Western phyry, and monzoniin. lona of ore averaging about 5% ABM file data Amorican Mines Co., Cu, 0.2 nz. Ag/T and minor Au Chemical Process Copper and Pb. Open pit El Tiro opera Co., Am. Smltg. & Ring. tion included ruder Silver Bell Co. mine.

minoreopperaulfidea, Shallowahaft andaurface work- Clarke, 1966 3. Magonigal mine 115 7E E. Cu, Ag, Pb-, Spottyeopperoxidea, iron ox— inga. in mld—1850’s produced ABM file dain (Gordon( Cen. Sb-, Mn— and wulfeniin, with manganese and 34 idea, along a fault zone cutting Cretaeeuus some 300 inns of ore averaging sediments and andeaitle voleanies. about 2. 5% Cu and 0. 14 on. AWT.

earbonaka Prospected and worked from Copper Handbook, 1902, 1903, 4. Mammoth mine lOS 8E NE¼ Cu, Ag, Pb—, Copper, and minorlead and zinc 1870’s to l93laaanunderground 1904, 1905 “ (Old Boot, imperial, Union; 4 Zn—, Mo—, Au— and suffides in fissure veins and irregular mine. Over 1 million inns of ore USGS Min. Rca., 1905 Huachues Mng. & Smltg. Co., dlsaeminations inpyromeinsomatie deposits produced, averagingbetter than Stewart, 1912 Pima Co. Meg. & Smltg. Co., ingarnetizedoralinred Paleozoic limestone andaboutl oz. Ag/T with Richards & Courtwright, 1954, Silver ReD Mng. Co., Mbort blnckaenguffedinLaramidedaclte porphyry 3%Cu Pb, Zn and Au. 1966 Sininfeld Cu., Imperial and monzunite intrualvea, along a major minor ABM file dain Copper Co., Am. Smltg. & fault zone. Rfng. Co.( copper carbon— Prospected and workedby shaft, USGS Min. Rca., 1985, P. 153 5. Oxide mine 12S 8E NE¼ Cu, Ag, Au— Veins and diaseminaiana of gar— tunnel and some open pita aince Copper Handbook, 1996, 1908 (Young America; Oxide 10 atea in pyromeinsomatic deposits in 1880’s. Up through 2918, pro— Stewart, 1912 Copper Co., Am. Smltg. & N1V¾ netized Paleozoic limealune bloeka engulfed and monzonlin duced some 5, 000 inns of ore Mines Handbook, 1918 Rfng. Co. ( 11 in Laramide dacite porphyry along a major fault zone, averaging about 11% Cu and 1 oz. ABM file data Ag/T. yrom 1954, production included under Silver Bell mine.

open pit operatinna since Richards & Courhvright, 1954, 6. Silver Bell mine lOS 8E NW¼ Cu, Ag, Mo, An Supergene enriched depnaiin of chalcoelte Two 1954. Up through 1972, produc— 1966 (El Tire and Oxide open pits; 4 with minor copper carbonates and siicatea vein— dun has been some 59. 8 mll— ABM file data Am. Smltg. & Rfng. Cu. I Ceo. derived from sheeted, closely spaced, 11 lets and aeams of quartz, pyrite, chalcupy— lion tons of ore averaging about rite, and minor molybdenite in hydrother- 0.8% Cu, 0.06 uz. Ag/T, 0. 004% mally altered Laramide dacite porphyry and Mu and minor Au and Pb. mnnzonite.

pyrumetaaomaUc deposit Shallow shaft and pit workings. ABM file data 7. Silver Lead mine group uS 8E SW¾ Pb, Zn, Cu, Ag A small, spotty, base meini aulfidea in in 1948—1949 produced some 130 (Contreraa( 28 of largely oxidized, a Palenznle limestone block along a fault inns of ore averaging about 3% eoninet with Laramide intrusive. Pb, 2% Zn, 1% Cu and 2 oz. Ag/T. Table 4, Coot.

MD4DOG DISTRICT LOCATION MINERAL GEOLOGY flPE OF OPERATION REFERENCES AND MINES T. R. Sec. PRODUCTS AND PRODUCTtON

8. Suneet mine group uS 7E Cen. Mn, Cu- Spotty and Irregular, replacementdeposit nf Shallow shaft, adit and open pit Farnham et alia, 1962, 119 (Hartley) p. 34 psilomelane with mlnnr snft manganeae and Produced aome 66 long tona of Clarke, 1965 copper oxides, InPermian limeatone inter— 28% Mn In 1955. bedded With quartzlte along a narrow fault zone and associated with an andesite dike.

300CtI. Waterman District 12S 8- Cu, Ph, Zn, Ag, Vein—like deposite of baae metal carbonates Shaft and adit operations. Ruff, 1951 (Silver Hill; Waterman Mtea.) 9E Au and sulfides along fault and fracture zones Worked intermittently since late McClymonde, 1957, 1959 In steeply folded Paleozoic formations. 1880’s with a total production ARM file data Some oxidized copper found in the Creta— through 1972 of some 25, 000 ceous sediments and Isolated Paleozoic out tons of ore containing about 750 crops. tone of copper, 780 tons of lead, 490 tons of zinc, 110 ounces of gold, and 130, 000 ounces of nil—

1 1. IndIana—Arizona mine group 12S SE Ph, NE¼ Zn, Cu, Ag, Irregular, vein—like, and pipe—like nrc— Shsftandsdit operations. Found Mines Handbook, 1926 (Carbonate group, Burro, 25 Au-, Mn- bodies cnntaining base metal carbonates and in tate 1880’s hut only worked RuN, 1951 Humestake, Abbie Waterman, Protracted sulfides in siliceous, limonitic and mangan— speradically from 1907 to 1969, ABM file data Paddy Woods; tedisna-Arizoun tferous brenda zones slung strung fsulte and producing some 8, 000 inns of Development Co., tedlana fissures or atfissure intersections in folded ore averaging about 7% each of Arizona Copper Co., Paleuzuic quartzltes and llmesinnes. Pb and Zn, 2% Cu, 8 uz. Ag/T International Ore Separstinn and minor Au. Co., Indiana-Arizona Mng. Cu., Golden Crown Mng. Co., Waterman Mins. Mng. Co., Western Minerals Corp., Knox-Arizona Copper RIng. Co.(

2. Carlo & Eclipse mines 13S SE NW% Cu, Ag Oxidized copper mineralization associated Shaft and pits. Worked in 1955— Ariz. Dept. Min. Res. (Carrillo, Bruce, Ace Mng. with a fault zone cutting Cretsceous sedi 1956 and 1962—1963, producing file data Co.( Nfl ments. Fault blocks of Paleuzuic timesinne, some 600 inns of ore averaging ABM His data quartzlte, and mudsinnes. about 2% Cu and 1. 1 oz. Ag/T. Shipped as siliceous smelter flux.

3. Silver Hill mine group 12S 9E NW% Cu, Ag, Ph Lensingveins and some limestone replace Shalt and adit operations. Ori ABM file data (Silver HID Consol. Copper 31 ments, containing copper and lead carbon ginally prospected in late 1900’s Cu., Ohio Arizona Copper ates and sutfides along faulte and fractures and worked sporadically from Co., Silver Hill Mines Co., In Paleozoic limesinne and quartclte. 1916 to 1947, producing at least Snyder, Byrd, Arizona 16, 000 inns of ore averaging a— Copper Bell Mng. Co.) bout 3.5% Cu, 3.5 oz. Ag/T, 0.6% Pb and minor Au. mifierauzation, mosuy ox- open pitmming cur smeccer uwc xxxm. Whetstone (Benson) District 17- liE ---- Cu, Ag Spotty copper Copper Plate mine, T9S, ARM file data (Whetstone Mtns.) 19S idized, inCretaceous sediments intruded by at Laramfde rhyodacite intrusives. Strong R18E, central section 24, where faulting. some 1,600 tons of ore averag ing about 1.2% Cu and 0.6 oz. Ag/T was produced to 1957- 1958.

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148 Drewes, Drewes,

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Gihingham,

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Geol. of Tucson, Field

Arizona: side

of Guidebook

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area:

Pima

of

Ariz.,

rangle, Soc.

Arizona

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Univ. Arizona:

Bull.

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the

eastern

C.

C.

Min.

R.,

J. York,

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H. Trip R.

Am. H.,

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L.,

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U.

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the L.,

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E. 1972c,

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Structural

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Soc. Petrography

Geology

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Sec.,

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Ariz.

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U.

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Fresnal Mining

4,

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Palo

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mineral

64th

Santa

Southern

structure S.

the

Asarco’s

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Delong,

Reconnaissance Bur. deposits

of

Mountains

Bull.,

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Prof.

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Geol.

IC—7990

149

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Alto the

Blue Ann.

the

of Journal:

Catalina

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Canyon 1-133

Mines

the

Ariz.

Thesis

resources map

the

stratigraphy

Santa

California

Ariz.

Paper

v.

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Ranch

Jay

C.

Survey

Mgt.,

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Ajo Empire

60,

Pima of

southeast

W.,

a

Bull.

Hiltano Geol.

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Rita

area,

McGraw-Hill

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Dept.

part

quadrangle:

the

748

p.

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Tucson,

Open-file

Geol.

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County, of

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Empire mine 1889-90 Arizona

area,

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Mountains,

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Soc., of

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Mm.

Camp,

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of

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Soc.

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Resources

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(abstract): Publishing no.

315-324

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Arizona:

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southeastern

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1,

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the

Arizona:

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Pontotoc

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County,

Stanford

County,

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Mines west

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Co.,

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Geol.

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Moun

Moun

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Cornelia

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King

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Pima

New

IC-7938

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of Tucson

Arizona:

Arizona:

Rita

IC-6666

Roskruge

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Cornelia

the

1

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Geol. mine:

of

area,

at

area,

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area,

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Survey Survey

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S. 58-6

County,

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in

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p.

U. costs

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Ajo,

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Xavier

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Geol. Geol.

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in

Sunshine

Greaterville, and copper

S.

Pima

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S. San

S. rocks copper S. Thesis

Thesis

Thesis

of

the

mine,

U.

methods

at

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U.

the U. U.

Amole

(?)

(Story

MS of

MS

Ajo

Arizona:

MS

Canyon

mine,

Thesis

Thesis in

Guidebook,

Contention

the

the

195-197

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the

alteration

Mam-a-gah 1147-A

of

of mining Box

MS MS deposits

p.

Reconnaissance

Cornelia

the

of

Arizona:

Peach-Elgin

Ariz.,

Ariz.,

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Pima

Ariz.,

Arizona:

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and

Arizona:

Arizona: the

deposits

H, district, of the

Mesozoic

Thesis Mining

Arizona

the

150 Bull.

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New

the

1962,

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Ariz., Ariz., geology placer

Univ. Ajo,

formations Univ. of

after

Univ.

MS

of

structure

County, 1965, the

11-22

pit 1932,

B.,

Thesis

and

Thesis mining

the

geology

257-309

of

Survey

p.

Univ. Univ. L.,

The 17 R. geology

Southern

Guidebook

MS

on

MS

Corp., Pima p.

Geology

Open Ariz.,

Ajo

mineralization

Reservation, Reservation, Success Geology

C. Barr, The

p. Arizona:

Arizona:

Arizona:

Geology

Mineralization Mesozoic Structural

430,

The 4,

Geol.

Geology 1961,

T.

8,

Am.;

Raup,

Pyrometasomatic

The

The

Geology

Notes

1960,

1966,

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Dodge

Ariz.,

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Fair, 1958, Ariz.,

A.

Arizona Arizona: Arizona: Indian

Indian

Corp.,

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1959,

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1969, 1965,

1971,

1965,

Soc. U.

1933,

County,

County,

R., A.,

1959,

C., 37,

and

Thesis and

3,

1942,

1946,

1952, 1910,

C.

M.,

Gerald,

N., B.,

Univ.

P., Univ.

A.,

D.,

J.

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v. F., W., W.

D. A.

R.

Dodge

v.

209

H.

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J., Pima Arizona:

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J., Pima County, Survey

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L. Southern

M.,

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M.

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G.

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Soc. Tucson

in

Phelps

Pima Pima

Jour.,

tains, tains,

trict,

Arizona: Geol.

Ariz.,

tains,

Arizona:

Branch, tains,

Soc.,

Gilluly, Gilluly,

Gilluly, Granger,

Greenstein, Hardwick,

Heatwole, Greenway,

Heindl, Hethdl, Gross,

Heyman,

Higdon,

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Irvin, renkins, 0. P. and Wilson, I. D., 1920, A geological reconnaissance of the Tucson and Amole mountains: Ariz. Bur. Mines Bull. 106, P. 5-18

Tohnson, V. H., 1941, The geology of the Helvetia mining district, Arizona: Univ. Ariz., PhD Thesis Johnson, V. H., 1949, Geology of the Helvetia mining district, Pima County, Arizona [abs.J: Econ. Geol., v. 44, p. 639-640; G. S. A. Bull., v. 60, no. 12, pt. 2, p. 1900—1901 Jones, R. D., 1957, Geology of the Cerro Colorado mining district: Univ. Ariz., MS Thesis

Jones, W. R., 1941, The geology of the Sycamore Ridge area, Pima County, Arizona: Univ. Ariz., MS Thesis

Joralemon, I. B., 1914, The Ajo copper mining district: AnvIl Bull., v. 92, p. 2011—2028; 1915, AThIE Trans., v. 49, p. 593—609; 1914, Eng. Mm. Jour., v. 93, p. 663—665 Joseph, P. E., 1915-1916, Molybdenum: Ariz. Bur. Mines Bull. 5 Journey, J. A., 1959, Pyrometasomatic deposits at Pima mine: Ariz. Geol. Soc., Southern Arizona Guidebook II, p. 198-199

Keith, S. B., 1969, Feldspar, Quartz, and Quartzite, in Mineral and Water Re sources of Arizona: Ariz. Bur. Mines Bull. 180

Keith, S. B., 1969, Limestone, dolomite, and marble, in Mineral and Water Re sources of Arizona: Ariz. Bur. Mines Bull. 180 Kerns, J. R., 1958, Geology of the Aqua Verde Hills, Pima County, Arizona: Univ. Ariz., MS Thesis Kerr, P. F., 1951, Alteration features at Silver Bell, Arizona: Geol. Soc. Am. Bull., v. 62, p. 451-480 Kinnison, J. E., 1958, Geology and ore deposits of the southern section of the Amole mining district, Tucson Mountains, Pima County, Arizona: Univ. Ariz., MS Thesis Kinnison, J. E., 1959, Structures of the Saginaw Hill area, Tucson Mountains, Arizona: Ariz. Geol. Soc., Southern Arizona Guidebook II, p. 146-151 Kinnison, J. E., 1966, The Mission copper deposit, in Titley, S. R. and Hicks, C. L., eds., Geology of the porphyry copper deposits, southwestern North America: Univ. Ariz., p. 281—287 Kirkemo, Harold, Anderson, C. A., and Creasey, S. C., 1965, Investigations of molybdenum deposits in the conterminous United States 1942-60: U. S. Geol. Survey Bull. 1182-E

Knight, L. H., 1967, Structural geology of the Cat Mountain Rhyolite in the northern Tucson Mountains, Pima County, Arizona: Univ. Ariz., MS Thesis

Kurtz, W. L., 1955, Geology of a portion of the Coyote Mountains, Pima County, Arizona: Univ. Ariz., MS Thesis

Lacy, W. C., 1959, Structure and ore deposits of the east Sierrita area: Ariz. Geol. Soc., Southern Arizona Guidebook U, p. 184-192

151 Lakes, A., 1900, Copper deposits of the Ajo Basin, Gila Basin, Arizona: Mine and Minerals, v. 21, p. 12—15

Layton, D. W., 1957, Stratigraphy and structure of the southwestern foothills o the Rincon Mountains, Pima County, Arizona: Univ. Ariz., MS Thesis

Lee, C. A. and Borland, G. C., 1935, The geology and ore deposits of the Cuprit mining district: Univ. Ariz., MS Thesis

Lynch, D. W., 1967, The geology of the Esperanza mine and vicinity, Pima County Arizona: Univ. Ariz., MS Thesis

Lynch, D. W., 1967, The economic geology of the Esperanza mine and vicinity in Titley and Hicks, ed., Geology of the porphyry copper deposits southwesterx North America: Univ. Ariz. Press, p. 267—279

Lynch, D. W., 1968, The geology of the Esperanza mine: in Ariz. Geol. Soc. Guidebook III, p. 125-136 MacKallor, J. A., 1957, Geology of the western part of the Cobabi mining district, Pima County, Arizona: Univ. Ariz., MS Thesis

MacKenzie, F. D., 1959, Pyrometasomatic deposits at the Mineral Hill and Dais3 mines: Ariz. Geol. Soc., Southern Arizona Guidebook TI, p. 193-194 Marvin, T. C., 1942, The geology of the HiltonRanch area, Pima County, Arizona: Univ. Ariz., MS Thesis

May, B. T., 1968, Magnetic properties of rocks associated with the New Corneli porphyry copper deposit, Pima County, Arizona: Univ. Ariz., PhD Thesis Mayo, E. B., 1963, Volcanic orogeny of the Tucson Mountains (a preliminary re port): Ariz. Geol. Soc. Dig., v. 6, p. 61-82 Mayo, I. B., 1968, A history of geologic investigation in the Tucson Mountains, Pima County, Arizona: Ariz. Geol. Soc., Southern Arizona Guidebook III, p. 155- 170

Mayo, F. B. and McCullough, F. J., Jr., 1964, Emplacement of basement blocks in the Tucson Mountain Chaos near Tucson, Arizona: Ariz. Acad. Sci. Jour., v. 3, no. 2, p. 81—86 Mayuga, M. N., 1940, Geology of the Empire Peak area, Pima County, Arizona: Univ. Ariz., MS Thesis

Manuga, M. N., 1942, The geology and ore deposits of the Helmet Peak area, Pima County, Arizona: Univ. Ariz., PhD Thesis

McClymonds, N. E., 1957, Stratigraphy and structure of the southern portion of the Waterman Mountains, Pima County, Arizona: Univ. Ariz., MS Thesis McClymonds, N. F., 1959, Paleozoic stratigraphy of the Waterman Mountains, Pima County, Arizona: Ariz. Geol. Soc., Southern Arizona Guidebook II, p. 67-76 McCoy, S., Jr., 1964, A description of the limestone blocks of the Tucson Moun tain Chaos, Pima County, Arizona: Univ. Ariz., MS Thesis McKenna, J. J., 1965, Buehman Canyon Paleozoic section, Pima County, Arizona: Univ. Ariz., MS Thesis

152 vledhi, P. K., 1964, A geologic study of the Pontatoc mine area, Pima County, Arizona: Univ. Ariz., MS Thesis

Ieeves, H. C., 1966, Nonpegrnatitic beryllium occurrences in Arizona, Colorado, New Mexico, Utah, and four adjacent States: U. S. Bur. Mines RI—6828

Vletz, R., 1963, The petrography of the Pantano beds in the Cienego Gap area, Pima County, Arizona: Univ. Ariz., MS Thesis dichel, F. A., Jr., 1959, Geology of the King mine, Helvetia, Arizona: Univ. Ariz., MS Thesis Vliller, R. A., 1955, King mine, Helvetia district, Arizona: U. S. Atomic Energy Comm. Prelim. Reconnaissance Report A-37 liller, R. A., 1955, Christenson-Lane mine, Helvetia district, Arizona: U. S. Atomic Energy Comm. Prelim. Reconnaissance Report A-20

The Mines Handbook, Vol. XV-XVH, 1922-1926 by W. H. Weed; published by the Mines Handbook Company, New York

The Mines Handbook and Copper Handbook, Vol. XU-XW, 1916-1920, by W. H. Weed; published by the Stevens Copper HandbookCo., N. Y., 1916; W. H. Weed, 1918, 1920; The Mines Handbook Co., 1925 Ioore, B. N., Tolman, C. F., Jr., Butler, B. S., and Hernon, R. M., 1941, Geology of the Thcsonquadrangle, Arizona: U. S. Geol. Survey Open-file Report

Ioore, R. T., 1969, Mica, in Mineral and Water Resources of Arizona: Ariz. Bur. Mines Bull. 180

‘Tye, T. S., 1961, Geology of the Paymaster mine, Pima County, Arizona: Ariz. Geol. Soc. Digest, v. 4, p. 161-168 Park, C. F., Jr., 1929, Geology of the San Xavier district: Univ. Ariz., MS Thesis Paydirt [year and number indicated]

Peterson, N. P. and Creasey, S. C., 1943, Some copper deposits in the Old Hat mining district, Pima County, Arizona: U. S. Geol. Survey Open-file’ Report

Popoff, C., 1940, The geology of the Rosemont mining camp, Pima County, Arizona: Univ. Ariz., MS Thesis Raabe, R. G., 1959, Structure and petrography of the Bullock Canyon, Buehman Canyon area, Pima County, Arizona: Univ. Ariz., MS Thesis Ransome, F. L., 1922, Ore deposits of the Sierrita Mountains, Pima County, Arizona: U. S. Geol. Survey Bull. 725

Richard, K. E. and Courtright, J. H., 1954, Structure and mineralization at Silver Bell, Arizona: Mm. Engr., v. 6, no. 11, p. 1095-1099; AME Trans. 1954, v. 199 (1955)

Richard, K. I. and Courtright, J. H., 1959, Some geologic features of the Mission copper deposit: Ariz. Geol. Soc., Southern Arizona Guidebook II, p. 200—204

Richard, K. and Courtright, J. H., 1966, Structure and mineralization at Silver Bell, Arizona, in Titley, S. R. and Hicks, C. L., eds., Geology of the porphyry copper deposits, southwestern North America, p. 157—163: Univ. Ariz. Press

153 Richard, T. A., 1923, The story of the New Cornelia: Eng. Mm. Jour. -Press, v. 115, P. 7—10

Richard, T. A., 1925, The later story of the New Cornelia enterprise: Engr. Mm. Jour., v. 119, p. 285—289

Romslo, T. M. and Robinson, C. S., 1952, Copper Giant deposits, Pima County. Arizona: U. S. Bur. Mines RI-4850 Ruff, A. W., 1951, The geology and ore deposits of the Indiana mine area, Pim County, Arizona: Univ. Ariz., MS Thesis

Schmitt, H. A., Clippinger, D. M., Roper, W. J., and Toombs, H., 1959, Dis seminated deposits at the Esperanza copper mine [abs. 1: Ariz. Geol. Soc. Southern Arizona Guidebook H, p. 205 Schrader, F. C., 1915, Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, with contributions by James M. Hill: U. S. Geol. Survey Bull. 582

Schrader, F. C., 1917, The geologic distribution and genesis of the metals in thE Santa Rita-Patagonia Mountains, Arizona: Econ. Geol., v. 12, p. 237-269

Schrader, F. C. and Hill, J. M., 1910, Some occurrences of molybdenite in thE Santa Rita and Patagonia Mountains, Arizona: U. S. Geol. Survey Bull. 430, p. 154—163

Schafroth, D. W., 1965, Structure and stratigraphy of the Cretaceous rocks south of the Empire Mountains, Pima, and Santa Cruz Counties, Arizona: Univ. Ariz. PhD Thesis

Sheikh, A. M., 1966, Geology and ore deposits of Las Guijas tungsten district, Pima County, Arizona: Univ. Ariz., MS Thesis Sheikh, A. M., 1970, Geology and ore deposits of Las Guijas tungsten district, Pima County, Arizona: Econ. Geol., V. 65, no. 7, p. 875—882

Shoemaker, A. H. and Somers, G., 1924, The geology of El Tiro mine, Silvex Bell, Arizona: Univ. Ariz., MS Thesis

Skillings Mining Review, 1961, Two years to strip Mission copper mine: V. 50, no. 49, p. 12

Skillings Mining Review, 1962, Asarcos Mission open-pit copper mine in Arizona: v. 51, no. 29, p. 6—9 Skillings Mining Review [year, volume, number, and pages indicated] Stephens, B. A., 1884, Quijotoa mining district guidebook: Tucson Citizen Print ing and Publishing Company Stewart, C. A., 1912, The geology and ore deposits of the Silverbell mining dis trict, Arizona: AIME Bull. 65, p. 455-505; Trans., v. 43, p. 240-290: Min. World, v. 36, p. 1104—1107, 1147—1150

Stewart, J. C., 1971, Geology of the Morningstar mine area, Greaterville mining district, Pima County, Arizona: Univ. Ariz., MS Thesis

Stewart, L. A., 1933, A study of the Ajo copper ore minerals: Univ. Ariz., M$ Thesis

154 storms, W. H. and Bowman, A. B., 1957, Mining methods and practices at the Mineral Hill Copper mine, Banner Mining Co., Pima County, Arizona: U. S. Bur. Mines IC-7786

Tathter, S. L., 1947, Amargosa (Esperanza) molybdenum-copper property, Pima County, Arizona: U. S. Bur. Mines RI-4016 Tenny, J. B., 1927-1929, History of mining in Arizona: Ariz. Bur. Mines files

Thomas, W. L., 1931, Geology and ore deposits of the Rosemont area, Pima Arizona: Univ. Ariz., MS Thesis

Thoms, J. A., 1966, The geology and ore deposits of the Tascuela area, Sierrita Mountains, Pima County, Arizona: Univ. Michigan, PhD Thesis

Thurmond, R. E., Heinrichs, W. E., Jr., and Spoulding, E. D., 1954, Geo physical discovery and development of the Pima mine, Pima County, Arizona — a successful exploration project: Mm. Engr., v. 6, no. 6, p. 197-202; AIIVIE Trans., v. 199

Thurmond, R. E., 1955, A description of the Pima ore body: Min. Cong. Jour., v. 41, no. 1, p. 27—30

Thurmond, R. E., 01k, J. F., Komadina, G. A., Spaulding, E. D., and Hernlund, R. W., 1958, Pima, a three-part story, geology, open-pit, milling: Mm. Engr., v. 10, no. 4, p. 453-462

Thurmond, R. E. and Storms, W. H., 1958, Discovery and development of the Pima copper deposit, Pima Mining Co., Pima County, Arizona: U. S. Bur. Mines IC—7822

Tolman, C. F., Jr., 1909, Copper deposits of Silverbell, Arizona: Mi Sci. Press, v. 99, p. 646—658

U. S. Bureau of Mines, 1932-1970, Mineral Yearbook [annual volumes for the years indicated]

U. S. Geological Survey, 1900-1923, MineraiResources of the United States [annual volumes for the years indicated]

Venable, B. W., 1963, Mining at the Palo Verde mine: Mining Congress Journal, v. 49, no. 1, p. 14-18

Wailer, H. E. , Jr., 1960, The geology of the Paymaster and Olivette mining areas, Pima County, Arizona: Univ. Ariz., MS Thesis

Wargo, J. G., 1954, Geology of a portion of the Coyote-Quinlan complex, Pima County, Arizona: Univ. Ariz., MS Thesis

Wargo, J. G. and Kurtz, W. L., 1956, Geologic and tectonic features of the Coyote Mountains, Arizona: Ohio Jour. Sci., v. 56, no. 1, p. 10—16

Warner, L. A., Holser, W. T., Wilmarth, V. R., and Cameron, E. N., 1959, Occurrences of non-pegmatitic beryllium in the United States: U. S. Geol. Survey Prof. Paper 318

Weidner, M. I., 1957, The geology of the Beacon Hill—Colossal Cave area, Pima County, Arizona: Univ. Ariz., MS Thesis

155 Whitcomb, H. A., 1948, Geology of the Morgan mine area, Twin Buttes, Arizona Univ. Ariz., MS Thesis Whitney, R. L., 1957, Stratigraphy and structure of the northeastern part of tin Tucson Mountains: Univ. Ariz., MS Thesis

Williams, S. A., 1962, The mineralogy of the Mildren and Steppe mining districts Pima County, Arizona: Univ. Ariz., PhD Thesis

Williams, S. A., 1963, Oxidation of sulfide ores in the Mildren and Steppe minin districts, Pima County, Arizona: Econ. Geol., v. 58, p. 1119-1125 Willis, C. F., 1915, Las Guijas placer: Arizona, the State Mag. and Pathfinder Nov., p. 10

Willis, C. F., 1916a, Arizona: Ariz. Bur. Mines Bull. 6

Willis, C. F., 1916b, Mining inArizona: Mining and Sci. Press, v. 112, p. 299-30(

Wilson, C. A., 1960, Ore controls of the San Xavier mine, Pima County, Arizona Univ. Ariz., MS Thesis

Wilson, E. D., 1941, Tungsten deposits of Arizona: Ariz. Bur. Mines Bull. 148

Wilson, E. D. and Roseveare, G. H., 1949, Arizona nonmetallics, 2nd ed., re vised: Ariz. Bur. Mines Bull. 155

Wilson, E. D., 1950a, Fluorspar in Arizona: Ariz. Bur. Mines Circular 15

Wilson, E. D., 1950b, Pima district, in Arizona zinc and lead deposits, part 1 Ariz. Bur. Mines Bull., no. 156, p. 39-51 Wilson, E. D., 1951, Empire district, in Arizona zinc and lead deposits, part II p. 49-56: Ariz. Bur. Mines Bull. 158 Wilson, E. D., 1961, Gold Placers and Placering in Arizona: Ariz. Bur. Mines Bull. 168

Wilson, E. U., Cunningham, J. B., and Butler, G. M., 1934 (revised 1967) Arizona Lode Gold Mines and Gold Mining: Ariz. Bur. Mines Bull. 137

Wilson, R. A., 1934, Thrust faulting in the Empire Mountains of southeasteri Arizona: Jour. Geol., v. 42, p. 422—429 Worcester, A. W., 1931, Allison mine of El Oro mining company: Mm. Jour. v. 15, no. 3, p. 5—6 World Mining [year, volume, number, and pages indicated] Wright, R. J., 1950, Reconnaissance of certain uranium deposits in Arizona USAEC, RMO-679

156