Energy 'l!BME-1~5< ·RME 155 RME-155
TID UC-51
PRELIMINARY RECONNAISSANCE FOR URANIUM IN ' -COCONINO COUNTY, ARIZONA, 1951 TO 1955
By
Grand Junction Office, AEC
and
U. s. Geological Survey
June 1970
(supersedes PB-172479)
Division of Raw Materials
U. s. Atomic Energy Commission
Washington, D. C. 20545
For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C., 20402 - Price $1 Mesa State College Library Grand Junction, CO
FILE ED-R-1130
PRELIMINARY RECONNAISSANCE REPORT
E:>ru\MINED BY H. p. Horner and D. F. 0 Is en 2. STATE Arizona COUNTY Coconino DA.TE(S) EXAMINED ----'2;J./...ol-=.l/~.,..,5~3----- DISTRICT______U~n~o~r~g~a~n~1~·z~e~d~------1. SAMPLES Nl.JiffiER TYPE AND WIDTH RADIOACTIVITY NEAREST TOl-IN ___C~a~m~e~r~o~n~------
22 108 Grab from hot spots 300-400 cps PROPERTY Public Land - anomaly No. 18 22 109 LOCATION: SEC. ___ T. ___ R.
3. TYPE OF EXAMINATION: Surface, radiometric and geologic
4, DIRECTIONS TO DEPOSIT: See sketch map.* This map is diagrammatical only. Anomaly is about 3 miles north of prominent leva-capped mesa. Mileage begins at Buck Roger's Trading Post on highway 89, about 2 miles south of Cameron, Arizona. Roads are unimproved dirt tracks. Bearings from anomalous area: S.5° W. to intersection of lava cap and monocline ridge on skyline. S.l7° E. to east end lava cap. * See map for ED-R-1129.
5 , OWNER OR OPERATOR: ADDRESS:
6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Discovered by AEC airborne reconnaissance methods; anomaly No. 18
7. RADIOACTIVITY: Area was traversed with Halross Model 939 Scintillometer held at waist level. Background - 20 cps; high count - 400 cps; average count - 150 cps. Area of abnormal radioactivity about 100 1 in diameter.
8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy):
A. Anomaly located on gravel-covered flat. Painted-desert topography.
B. Samples taken from high count areas in soft, clayey sandstone near base of Chinle formation. Radioactivity is associated with silicified logs.
c. No radioactive minerals seen; spots of high radioactivity are altered from gray to orange yellow.
- 3- FILE ED-R-1128
PRELIMINARY RECONNAISSANCE REPORT
EXAMINED BY W. P. Horner and D. F. Olsen 2. STATE _.:.;A:::r..::i=.z;:;.on'-'a==---· COUNTY Coconino DATE(S) EXAMINED __..:::2"-/-=-11"-'/-"5"'-3 _____ DISTRICT Unorganized l. SAMPLES --~~~~~------NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN -~C~a~m~e~r~o~n~------22111 Grab from hot spot 600 cps PROPERTY Navajo Indian Reservation Anomaly No. 20 LOCATION: SEC. ___ T. ___ R.
3. TYPE OF EXAMINATION: Surface, radiometric and geologic
4. DIRECTIONS TO DEPOSIT: See sketch map.* This map is diagrammatical only. Anomaly is about 3 miles north of prominent lava-capped mesa. Mileage begins at Buck Roger's Trading Post on highway 89, about 2 miles south of Cameron, Arizona. Roads are unimproved dirt tracks.
* See map for ED-R-1129.
5 . OWNER OR OPERATOR: Navajo Indian Reservation ADDRESS:
6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Discovered by AEC airborne reconnaissance methods - anomaly No. 20
7· RADIOACTIVITY: Area was traversed with Ralross Scintillometer Model 939 held at waist level. Background - 20 cps; high count - 600 cps; average count - 80-100 cps. 1 1 Anomalous radioactivity in area about 200 by 300 •
8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy):
A. Anomaly located on gravel-covered flat; painted-desert topography.
B. Samples taken from soft clayey sandstone near base of Chinle formation; radioactivity is spotty.
c. No radioactive minerals seen. Radioactivity associated with carbonaceous material in sandstone which is altered from gray to orange yellow.
- 4 - FILE ED -R-1143
PRELIMINARY RECONNAISSANCE REPORT
EXAMINED BY W. P. Horner and D. F. Olsen 2. STATE --~A~r~i~z~o~n~a~-- COUNTY Coconino DATE(S) EXAMINED 2/26 thru 3/4/53 DISTRICT.______1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Cameron, Arizona
%vzo.2 %U30sc %U308e PROPERTY Navajo Indian Reservation 22119 A-33 Grab from 0.02 0.02 0.01 A-33, 34,~3~5~,~3~6-,~3~7~,~3~8~,~3~9~,~a~n~d~4~0~-- 22120 A-34 Hot spots 0.02 0.01 0.02 LOCATION: 22125 A-36 0.03 0.01 0.01 SEC. T. ___ R. ,.., " 22123 A-37 " 0.07 0.01 0.03 22124 A-39 " D. OS 0.03 0.03 3. TYPE OF EXAMINATION: These discoveries are all considered in one report because they are closely grouped and have similar geology and topography. 4. DIRECTIONS TO DEPOSIT: See map.
5. OWNER OR OPERATOR: Navajo Indian Reservation ADDRESS:
6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: None. Discovered by airborne reconnaissance methods; anomalies 33, 34, 35, 36, 37, 39 and 40,
7. RADIOACTIVITY: The areas were traversed with Halross Scintillometer and with a Precision Scintillator. Count was generally low, never exceeding 175 cps, or .20 mr/hr. Average count was much lower, 40 to 60 cps, .03 to .05 mr/hr.
8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. An area of low mesas and benches, small steep-sided canyons, and dry stream channels. Accessible by four wheel drive vehicle.
B. Radioactivity from a coarse-grained, well-cemented, crossbedded, 3-10-foot- thick layer of sandstone in the Shinarump formation. Radioactivity is associated with fossil wood buried in the sandstone layer. The layer extends over the entire area and is underlain by a variegated mudstone which shows chunky parting. The anomalous spots surround a structural bowl about 1 mile in diameter. (See map) The sediments dip toward the center of the bowl at an angle of about 15 degrees. Chinle remnants lie within the bowl.
c. No radioactive minerals were seen. The highest radioactivity is from iron-stained haloes surrounding the fossil wood, The wood is silicified and contains some green copper staining,
- 5 - ED-R-1143
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- 6 - FILE ED-R-1129
PRELIMINARY RECONNAISSANCE REPORT
EXAMINED BY W, P. Horner and D. F. Olsen 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED 2/ll/53 ----~~~------DISTRICT____ ~U~n~o~r~g~a~n~i~z~e~d~------1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN --~C~a~m~e~r~o~n~------22110 Grab from ho• spot 500 cps PROPERTY Public Land - Anomaly No. 19
LOCATION: SEC. ------T. ------R. 3· TYPE OF EXAMINATION: Surface, radiometric and geologic
4. DIRECTIONS TC DEPOSIT: See sketch map. This map is diagrammatical only, Anomaly is about 3 miles north of prominent lava-capped mesa. Mileage begins at Buck Roger's Trading Post on highway 89, about 2 miles south of Cameron, Arizona, Roads are unimproved dirt tracks.
5 • OWNER OR OPERATOR: ADDRESS:
6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Discovered by AEC airborne reconnaissance methods; anomaly No. 19
7· RADIOACTIVITY: Area was traversed with Halross Scintillometer Model 939, held at waist level. Background 20 cps; high count 500 cps; average count 80-100 cps. Anomalous radioactivity in area about 200 1 long, 100 1 wide.
8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy):
A. Anomaly located on gravel-covered flat; painted-desert topography.
B. Samples taken from soft clayey sandstone near base of Chinle formation; radioactivity is spotty.
C. No radioactive minerals seen; radioactivity associated tvith carbonaceous material in sandstone which is altered from gnay to orange yellow.
- 7 - FILE ED-R-1129
9· PROOF OF OWNERSHIP RECEIVED: PERMISSION TO PUBLISH RECEIVED:
10. OTHER INVESTIGATIONS:
ll. ADDITIONAL INFORMATION:
1 12. MAP: 1 1!1 \'S""'~ ~ dlo{f s 1. \>, .o, o:l.\ "('('~.\. ' "
N ... 18
13. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW _ ___:N;..o____ _
- 8 - FILE ED:R-227
PRELIMINARY RECONNAISSANCE REPORT EX.AJUNED BY c. Clare Gregg 2. STATE Arizona COUNTY Coconino DA':::rE ( S) EXAMINED -""-5.::.-1:;8<=-""-53"------DISTRICT____ ~M~a~r~b~l~e~C~a~n~y~o~n~------1. SAMPLES NUJ'.!BER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Marble Canyon
3 Grab samples from one outcrop went from 3 PROPERTY La Salle Mining percent to 5 percent U303 and about 7 percent Cu. LOCATION: SEC. 18,21 T. 39 N. R. 8 E. --'-- 15848 2-Ft. channel U308 (Chern) 0.03% 3· TYPE OF EXAMINATION: Geologic
4. DIRECTIONS TO DEPOSIT: Two miles west of Marble canyon, then up a draw (with spring). All of the claims are in this draw.
5. OWNER OR OPERATOR: La Salle Mining Co, ADDRESS:
6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: None
7· RADIOACTIVITY: Up to 15 mr/hr
8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy):
A. At the base of the Vermillion Cliffs - Shinarump bench 400 ft. above highway.
B. Shinarump channel runs parallel to highway and rim then turns up draw. Channel is 1000 feet wide and cuts Moenkopi 50 ft. to 70ft. c. Much copper and copper color - carbon not abundant. Some count over most of the contact. One "hot spot" (see map).
- 9 - FILE ED :R-227
9· PROOF OF OWNERSHIP RECEIVED: No PERMISSION TO PUBLISH RECEIVED: No
10. OTHER INVESTIGATIONS:
ll. ADDITIONAL INFORMATION:
12. MAP: Jl ,"Rc. I 1
/ / \'(\ Q-.'<- 'ok / C.o..'<''\~'(V '?-. ""'"' -
SeA a: IJ .______. ~ /)'/1/e
13. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW ------
- 10 - FILE R-R-200
PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY H. S. Scott and L. Davis 2. STATE __A_r_i_z_o_n_a ___ COUNTY Coconino DATE(S) EXAMINED 6-15-54 ----~~~------DISTRICT None l. SANPLES ------NUMJ3ER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Marble Canyon Lodge
PROPERTY Red Wing No, 4 Claim
F-13H Pulp - argillaceous LOCATION: sandstone 2.257 2.43 SEC . _.::2____ T. 4 0 N. R. 7 E. 3. TYPE OF EXAMINATION: Surface examination of outcrops with Halross scintillometer
4. DIFiliCTIONS TO DEPOSIT: Follow the Lee's Ferry road out of Marble Canyon Lodge past the Paradise Ranch. The deposit is approximately 7 miles from Marble Canyon on the West side of the Paria River.
5. OWNER OR OPERATOR: Price W. Johnson ADDRESS: P. 0, Box 71, Fredonia, Arizona
6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: No workings other than a few prospect pits.
7. RADIOACTIVITY: Using a Halross the background was 10-20 cps. Top reading 4500 cps. Scattered counts from 200 cps to 2000 cps.
8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): The deposit is located on the cliffs bordering the Paria River. The face of the cliffs is covered by talus and slump, but higher up the rock may be in place. The formation is Chinle, but it is coarser than typical Chinle sand; in some places the sand and conglomerate member resemble the Shinarump conglomerate, The highest count was found in an argillaceous sandstone, No uranium minerals were identified,
- ll - FILE ED-R-1124
PRELIMINARY RECONNAISSANCE REPORT
EXAMINED BY W. P. Horner, D. F. Olsen 2. STATE Arizona COUN~Coconino DATE(S) EXAMINED February 5, 1953 DISTRICT ------1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN ___ca_m_e_r_o_n ______
22107 Grab from hot spot 1.0 mr/hr PROPERTY Public land, anomaly no. 14 LOCATION: SEC. ____ T. ___ R.
3· TYPE OF EXAMINATION: Radiometric and geologic
4. DIRECTIONS TO DEPOSIT: Anomaly is about 3 miles north of prominent lava-capped mesa. Mileage begins at Buck Rodger's Trading Post on Highway 89, about 2 miles south of Cameron, Arizona. Roads are unimproved dirt tracks. Bearings at anomaly: to east end of lava cap, s. 20° E., to Humphrey's Peak, S. 340 w. See map.
5 . OWNER OR OPERATOR: ADDRESS:
6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Discovered by AEC airborne reconnaissance
7· RADIOACTIVITY: Area was traversed with Halross scintillometer model 939 carried at waist level; background 20 cps. Radioactivity is spotty, 800 cps highest count; several spots 500 to 600 cps. Dimensions are about 10 by 15 feet for hot spots.
8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy):
A. Located in Painted Desert on southwest Side of Little Colorado River. Gently rolling, gravel-covered ground accessible by jeep.
B. High radioactivity emanates from a soft, medium-grained clayey sandstone containing carbonaceous matter, and is near base of the Chinle formation. Radioactivity decreases with depth.
C. No uranium minerals seen, Radioactive sandstone is altered to orange yellow. Sample was taken from 800 cps spot.
- 12 - FILE ED-R-1124
9. PROOF OF OWNERSHIP RECEIVED: PERMISSION TO PUBLISH RECEIVED:
10. OTHER INVESTIGATIONS:
ll. AJJDITIONAL INFORMATION:
12. MAP: 1 /'(
b. q \)\~-'t \:>o.-'<""
13. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW ___,N!>o'----- - D - FILE ED-R-1122 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY w. P. Horner and D. F. Olsen 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED February 5, 1953 DISTRICT Unorganized l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN ~Cam==e~r~o~n~------22lo6 Grab from hot spot 0.5 mr/hr PROPERTY Public land, anomaly no. 16 LOCATION: SEC. ___ T. ___ R. 3· TYPE OF EXAMINATION: Radiometric and geologic 4. DIRECTIONS TO DEPOSIT: See diagrammatic sketch map for ED-R-1124. Anomaly is about 3 miles north of prominent lava-capped mesa. Mileage begins at Buck Rodgers' Trading Post on Highway 89, about 2 miles south of Cameron, Arizona. Roads are unimproved dirt tracks. Bearings at anomaly: to Humphrey's Peak1 s. 35° w., to east end lava cap, s. 07° E. 5 . OWNER OR OPERATOR: ADDRESS: 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Discovered by AEC airborne reconnaissance, anomaly no, 16 7. RADIOACTIVITY: Area traversed with Halross scintillometer model 939 carried at waist level. Background 20 cps. Isolated small spots of high radioactivity, 300-400 cps. Area about 100 yards in diameter. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Located in Painted desert southwest of Little Colorado River; anomalous area in pebble-covered flat accessible by jeep. B. High radioactivity is in soft, clayey sandstone near base of Chinle formation. Sample was taken from 300 cps spot. Zone of abnormal radio- activity crops out along stream cut. c. No radioactive minerals observed, FILE ED-R-1126 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY H. P. Horner and D. F. Olsen 2. STATE --=:...=:..;..;;:;;c____Arizona COUNTY Coconino DATE(S) EXAMINED January 29, 1953 DISTRICT.____ ~U~n~o~r~g~a~n~i~z~e~d~------1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Cameron, Arizona PROPERTY Navajo Indian Reservation Anomaly No. 13 LOCATION: SEC. ___ T. ___ R. 3. TYPE OF EXAMINATION: Radiometric and geologic 4. DIRECTIONS TO DEPOSIT: See sketch map. Mileage starts at Black Falls Trading Post 16 miles east of Highway 89. 5 . OWNER OR OPERATOR: ADDRESS: 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Discovered by AEC airborne reconnaissance; anomaly No. 13 7. RADIOACTIVITY: Area traversed with Halross Scintillometer Model 939 carried at waist level. Background: 15 cps. Several small spots slightly radioactive. High count: 40-50 cps. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Badlands, low, bare hills, numerous dry washes; located in the Painted Desert on the northeast side of the Little Colorado River. B. High radioactivity emanates from beds of soft, medium- to fine-grained, clayey sandstone near the base of the Chinle formation. Isolated spots with abnormal radioactivity are 5 to 10 feet in diameter, surround silicified logs partially buried in the sandstone. C. No radioactive mineral observed. - 15 - FILE ED-R-1126 9. PROOF OF OWNERSHIP RECEIVED: PERMISSION TO PUBLISH RECEIVED: 10. OTHER INVESTIGATIONS: ll. ADDITIONAL INFORMATION: 12. MAP: . A""'""'-\'} \3 6,3/~' 13. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW ___N_o ___ _ - 16 - FILE ED-R-1123 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY W. P. Horner and D. F. Olsen 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED February 5, 1953 ==='---- DISTRICT Unorganized 1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN ~C=am=e=r~o~n~------22104 Grab from hot spot 0.12 mr/hr PROPERTY Public land, anomaly no. 17 LOCATION: SEC. ___ T. ____ R. 3· TYPE OF EXAMINATION: Radiometric and geologic 4. DIRECTIONS TO DEPOSIT: See diagrammatic sketch map for ED-R-1124. Anomaly is about 3 miles north of prominent l~va-capped mesa. Mileage begins at Buck Rodgers' Trading Post on Highway 89, about 2 miles south of Cameron, Arizona. Roads are unimproved dirt tracks. Bearings at anomaly: on nor~h side of lava flow bearing to east end, s. 3° w., west end of lava cap, S. 43 w. 5 . OWNER OR OPERATOR: ADDRESS: 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Discovered by AEC airborne reconnaissance, anomaly no. 17 1· RADIOACTIVITY: Area traversed with Halross scintillometer model 939 carried at waist level. Background 20 cps; high count 120 cps; average 40-60 cps. Area of abnormal radioactivity 200' x 50'. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Located in Painted Desert on southwest side of Little Colorado River; numerous dry washes, sparse vegetation; accessible by jeep. B. Radioactivity from jasperoid slabs and plates on lower Chinle surface. Slabs are bard, brittle, red brown, 6" to 2' in diameter, l-4" thick. c. No radioactive minerals observed. - 17 - FILE RA-16 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY A. J. Rambosek, Floyd J. Williams 2 .STATE __A_r.c.iz_o_n_a ___ COUNTY Coconino DATE(S) EXAMINED September 3, 1952 DISTRICT__ c_am_er_o_n ______1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Cameron, Arizona Arrowhead Uranium Co. PROPERTY Huskon No. 5 F-6652 Grab - 30 feet across 2000 0.082 log c.p.s. LOCATION: SJ!:C. --- T. 3 0 N. R. _.:.9...:E:.:·:...__ F-6653 Hand specimen of log 3000 c.p.s. 3· TYPE OF EXAMINATION: Surface radiometric 4. DIRECTIONS TO DEPOSIT: Follow U. S. Highway No, 89 north from Cameron to junction of Tuba City road with U. S. No. 89 (10 mi.). Travel cross country toward cliff for 5,000 feet south 73°E from road junction, 5. OWNER OR OPERATOR: George E. Morehouse or c/o Buck Rogers Trading Post, ADDRESS: or Russell C. Cutter Phone:3136-R Cameron, Arizona 505 North 19th Street, Grand Junction, Colorado Phone: Flagstaff operator and ask for Indian Service 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Line. No previous history, production or workings. Eight claims located July and August 1952. See general notes on Huskon Claims, 7· RADIOACTIVITY: Background = 20 cps 800 - 2500 cps, 1000 cps common Maximum is +3000 cps 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Barren, low, rolling hills below Echo Cliffs rim. B. Crossbedded Chinle sandstone and mudstone. Ore-bearing area contains uraniferous petrified logs at or near surface. C. Carnotite in petrified log. Several uraniferous halos surrounding logs wereroted. - 18 - To Na.vajc. T !: 0 .\ w N s 1\~~-~------2-9 H I p Hus,;on 2 !x- \ Comt:ron a s -+-"'-.~-+--- 28 27 \'. .:.;:.. ..::• ... cvCJO Covntry oy U.S.G.S., 6. h. E. :)regory ( !908- 1913) SCALE: 0 .______, 8 Miles R ,J<;: r r: ---~:~m~ron-,C-/) !F:agstaff INDEX MAP Snow1ng Location of ( H J S K 0 N C _A i ·\1 S Arrownead Uranium Co Cocon1no County, Arizona l~ '}.Pnoen SCALE: 0 ...__~~--J 180 ~------Miles !?II- Ito - 19 - FILE ED-R-1125 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY W. P. Horner anQ D. F. Olsen 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED February 5, 1953 DISTRICT Unorganized 1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN __c~a=m~e=r=o=n~------22105 Grab from hot spot 1 mr/hr PROPERTY Public land, anomaly no. 15 LOCATION: SEC. ___ T. ___ R. 3. TYPE OF EXAMINATION: Radiometric and geologic 4. DIRECTIONS TO DEPOSIT: See diagrammatic sketch map for ED-R-1124. Anomaly is about 3 miles north of prominent lava-capped mesa. Mileage begins at Buck Rodgers' Trading Post on Highway 89, about 2 miles south of Cameron, Arizona. Roads are unimproved dirt tracks. Bearin§s at anomaly: to west end of lava cap, s. 390 w., to Shadow Mountain, N. 20 w. 5 . OWNER OR OPERATOR: ADDRESS: 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Discovered by AEC airborne reconnaissance, anomaly no. 15 7· RADIOACTIVITY: Area traversed with Halross scintillometer model 939 carried at waist level. Background 20 cps, high count 350 cps, average 80 cps. Area 200' x 300'. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Painted Desert on southwest side of Little Colorado River. Anomalous area is in pebble- and slab-covered flat. B. Radioactivity from slabs and plates of jasperoid silica scattered over the lower Chinle surface, decreases at depth. c. Slabs partly coated with light-green unidentified radioactive mineral. Sample taken from the most radioactive plates. Sulfides are disseminated throughout slabs. FILE RA-17 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY A. J. Rambosek, Floyd J. Willi~. STATE Arizona COUNTY Coconino DATE(S) EXAMINED Sept. 9, Oct. 28-29, 1952 DISTRICT Cameron l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Cameron \§U3o8 Arr:;;o~w"'h~e:oa""d-ur"""'a"n;;:J.;:.um= 7c"'o:-.---- F 6654 Chip, 1.3' Chinle 3000 cps 1.60 PROPERTY Huskon no. 1 sandstone LOCATION: F 6655 Chip, 3.0' Chinle 1000 cps 0.294 SEC. ___ T. 29 N. R. -49_,E::.:.·-- sandstone 3. TYPE OF EXAMINATION: Surface F 6656 Hand specimen 1500-2000 radiometric (secondary mineralization) 4. DIRECTIONS TC DEPOSIT: Follow dirt road northeast from north end of bridge at Cameron for 1 mile. Claim is in low hills at point where road drops into valley of Little Colorado River. Property is 5120 feet N. 77° 15' E. from north end of bridge. c/o Buck Rogers Trading Post, OWNER OR OPERATOR: George E. Morehouse or Russel c. Cutter OR Cameron, Arizona. ADDRESS: 505 North 19th Street Phone Flagstaff; Grand Junction, Colorado (Tel. 3136-R) ask operator for Indian Service 6 . MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: line. No previous history, production or workings Eight claims located July and August 1952 7. RADIOACTIVITY: Background 20 cps; ore is 8oo to 2500 cps; 1000 cps common; 3000 cps maximum. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Low rolling hills, no timber. B. Sandy facies of Chinle containing carbon trash, buff color. Chana apparent (lithic and alteration) in blue-red mudstone. C. limonite, carnotite. - 21 - Shinarump? Grav~l 0;, Cre~T o.P Hl/1----4/ ~5.0' / I I I ( I ,.-___ -FlaT- L.f!n.? 8 eds h~<'·G'rcin<' PRODUCING AREA HUSKON No. I CLAIM / ARROW HEAD URANIUM co. ( ' Stock Pile Sec. ( T.29 N., R. 9 E. ' l Coconino CountY, Arizona. ' ' ilrea / --- ~ - SCALE: 0 100 Feet / / -\ /900 I Z.1CO / 2900 /5(}0 2ooo tC.OO I sse fdOO 700 woa I !900 750 f()()O J 400 !600 2?S' I 250 - Y,'~~~ 200 ~0<1<.1 IOSO 340 Odd 306 I 2<10 "'o '""" 2!iO PRODUCING AREA HUSKON No. l CLAIM ARROWHEAD URANIUM CO. Coconino County, Arizona. Scintillometer Survey Ha!ross No. 939 Serial No. 15 0 SCALE: 0 100 Feet - 22 - F3673 ORE RES£RVE F3672. - -..,. ~Ox3 x25 :::: "-"'" ..,.. .. ,o:o y---- - f5 ovv ,o~ I - F3674- / I P3<7S @ F .3~70 0.1sr. u3o8 1 1 F3~(,9 1 F3C74 r3~u<;# t F.36 77 r5~64; ,___, .... 3~79 ,: 3~SC I SAMPlE MAP- PRODUCING AREA HUSKON .CLAIM No ARROWHEAD URANIUM CO Coco,lno County, Arizona. SCALE : 0 '------' 100 Feet STOCK PILES U;Ose_ U308c EAST S76'C~ PILE • ••• , , •• • 2tJO TONS F "3'-51 (GRA!l SAMPLE) o. 0 0 2. F36.52. " 0.077 MIPD!.£. EAST STOC/j' PJJ.£ ••.• ,92 Tt:JNS F3b53 0./1 ~ F3b54- " 0,!49 CENTER. STOCK P/L£.,, , , , , , ,55 TONS 1'3<655 " 0,589 NIOOLE VIE5T STOCI( Pn. E. • , • •74- T(JII/5 F 3<.50. ,, 0./28 ~v £sr sracl( PIL.£..,, , , . , . , , 6 7 IONS F3657 " o.o 8 2. WIDTH U30g.- ll303c Wt OTt( U309r U,p08 c !=365"8 TOP 1.6 1 0.0,39 0,066 F :?671 n>P 2,4' 0. JOE; o. roo f3b59 2,'5' 0.153 0./60 F%71. ~RAB 0.2.7':1 0.295 F3G~o 1.0' o.o..;..o 0.044- F367"3 GRA!) 0.1 2. 6 Q,J IS F3G.&i 1.0' 0,075 0./4 I F3674 4.0' 0,0 64- 0.088 F"3662. I• 2.' o. 1'37 0.226 F3<:.75 4.21 0./21 o.ass F:O'-C.3 f.O' o."\62 0.534 F 3.:;7.:, 3.5' 0./44 o. f I S ;::- 3f. 64- !.2' O,C76- ().09 6 F3<:.77 3.7 ' 0.034- 0.0 4 4J 1 F3GG5 2,4 0.04'3 0,0 6 4- F 3<>711 3. 7! 0,253 o.tB8 F3C.f.6 {.!;)' o.o58 0.07 3 ~3679 '3.4' o.aso o .. 077 F'Sb 67 /.7' o.o46 o.o6S F"3 .:.so z.a.· 0.252 0.308 F3G.'-S 2.d O.o:J7 0,06/ F 3681 2.S' o.o6' 3 0.056 F3669 /.'S' 0.2/B o.ts G F36S2. 22' 0.03;5 o.osz ;: 3 (a 70 3.~· 0,074 O,OS4- 2':1 0<'fo6er /952 RAm 9 - 23 - FILE R-R-184 ~'--"'---- PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY H. S. Scott 2. STATE Arizona COUNTY Coconino DATE ( S) EXAMI"'NE=D~__..:.:~6;,.._:.,.zrngr-_.;,.54;,;:....----- DISTRICT None l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN __M_a_r_b_l_e_C_a_n_,yc...o_n_L_o_d=:_g_e __ PROPERTY B and B No. l and ll LOCATION: SEC. _ _,_l __ T. 40 N.(?) R. 7 E. 3. TYPE OF EXAMINATION: Surface examination of outcrops 4. DIRECTIONS TO DEPOSIT: The Lee's Ferry road from Marble Canyon to Paria Creek north up Paria Creek. Approximately 10 miles from Marble Canyon Lodge. 5. OWNER OR OPERATOR: P. W. Johnson ADDRESS: Box 71, Fredonia, Arizona 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Few small prospect pits 7. RADIOACTIVITY: El-tronics counter Background - 0.05 mr/br Top reading - 2.0 (top second scale) 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Outcrops along banks of Paria Creek, B. Sandstones and clays of Chinle fire-clay member. c. Small scattered pockets of carbonaceous matter, some fossil wood. Some copper was present in small amounts. - 24 - FILE R-R-101 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY D. C. Barrett and Clyde Collins2. STATE Arizona COUNTY Coconino DAT~(S) EXAMINED April 22, 1953 DISTRICT.______l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN _ _:L::ce::ce:..'...:s:.....:F:..:e:c:r:..::r;.,Y______ PROPERTY Sandy Nos. 1, 2 and 3 LOCATION: NE\ SEC. _1_2__ T. 40 N. R. 7 E. 3· TYPE OF EXAMINATION: Surface and Geiger counter 4. DIRECTIONS TO DEPOSIT: From Highway 89 at Marble Canyon Lodge (1/10 mile north of Navajo Bridge) take dirt road to Paradise Canyon Ranch, then north up the Paria Wash one mile to base of cliff. Claim lies at top (300 feet+ above valley) mesa. 5 . OWNER OR OPERATOR: Claud Delbridge ADDRESS: Lee's Ferry, Arizona 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Sandy Nos. 1, 2 and 3, no production, no workings. 7. RADIOACTIVITY: Radioactivity is associated with copper-stained Shinarump conglomerate and sandstone near the base of the formation, and with carbon trash at the Shinarump- Moenkopi contact. Highest readings were 20 divisions on the 0.2 scale, background was 0.25 - 0.10. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): The deposit occurs in nearly flat-lying Shinarump conglomerate. It occurs in the contact at the base of the Shinarump with the Moenkopi, and in an intraformational sandy band about 10 feet from the base of the Shinarump. No uranium minerals could be reached. The best radiometric readings from calcium stained float indicated 0.20% eu3o8. Metahewettite was found. - 25 - FILE R-R-102 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY D. C. Barrett and Clyde Collins 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED _---':!4~-2...,3~.:-"'-53,.______DISTRICT.______1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN --~H~o~u~s~e~R~o~c~k~,~A~r~i~z~on~a~---- The following surface grab sample was reported by the owners, assayed by V.C.A. PROPERTY White Pocket Claim U303 - • 03% LOCATION: SEC.---- T. ___ R. V205 - .20% 3· TYPE OF EXAMINATION: Cu - 4.0% Surface Scintillator and Geiger counter 4. DIRECTIONS TO DEPOSIT: 5 . OWNER OR OPERATOR: Lurton J. Knee, Torrey, Utah ADDRESS: Mell Schopperman, Kanab, Utah 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: White Pocket mine first located in 1938 by unknown prospector, Just recently rediscovered and located, 7· RADIOACTIVITY: Radioactivity was very low. A few specimens would read over .025 mr/br on the first scale of a scintillator. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): Hydrothermal disseminated deposit in crossbedded Navajo sandstone. Copper and manganese stain, - 26 - FILE ED-R-1146 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY H. P. Horner and D. F. Olsen 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED 2/25/53 DISTRICT.____ ~C~a~m~e~r~o~n ______1. SAMPLES NUMBER TYPE AND HIDTH RADIOACTIVITY NEAREST TOHN ___;C:::;a::;m=:e:.:r::.:o:.:n"'''--"A::r:..:i::Z:..:O:.:n:;:a::______%v2o5 %u3o8c %U30se 28451 Grab 0.03 0.05 0.06 PROPERTY Navajo Indian Reservation LOCATION: SEC. T. ___ R. 3· TYPE OF EXAMINATION: Surface radiometric and geologic 4. DIRECTIONS TO DEPOSIT: See map. Mileage starts at Cameron, Arizona 5. OWNER OR OPERATOR: Navajo Indian Reservation ADDRESS: Window Rock, Arizona 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Not previously claimed or worked. Discovered by airborne reconnaissance methods; anomaly No. 29. 7· RADIOACTIVITY: Area traversed with Halross Scintillometer Model 939 held at waist level. Background: 20 cps. Average count: 50 cps. High count: 150 cps. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Radioactive zone on top of a bluff beside Moenkopi Hash; area accessible by jeep. B. Radioactivity is in scattered spots along the bluff which is composed of Shinarump and Hoenkopi formations. The radioactivity is associated with fossil-wood fragments. c. No radioactive minerals seen; spots of highest count contain fossil wood. A halo of iron-stained rock surrounds logs. and wood fragments. - 27 - FILE ED-R-1146 9· PROOF OF OWNERSHIP RECEIVED: PERMISSION TO PUBLISH RECEIVED: 10. OTHER INVESTIGATIONS: 11. ADDITIONAL INFORMATION: 12. MAP: ....0 ~- 13. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW _.;N:.:o____ _ - 28 - FILE SL-131 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY Harlen Holen 2. STATE __Ar_i_z_o_n_a __ CCJUNTY _co_c_o_n_i_n_o_ DA~(S) EXAMI~~~D~~~~~~~------D!STRICT.____ ~U~n~o_r~ga_n~i_z_e_d ______l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY ~AREST TOWN Houserock Ranch 'fO eU308 PROPERTY Saucer Claims l. 4 • Channel 0.03 LOCATION: Select (much FeOx) 0.07 4 E. Select (consider SEC. ---- T. 34 N. R. able Cu carbonate) 0.02 3· TYPE OF EXAMINATION: Radiometric examination of outcrops; Model lll Scintillator 4. DIF.ECTIONS TO DEPOSIT: Go 6 miles east of Houserock Ranch on U. s. 89.~ Take Buffalo Range road (South Canyon road) south for 31 miles to Saddle Canyon road. Take Saddle Canyon road to end (5.3 miles). Walk about 3/4 mile west along north rim of Saddle Canyon to prospect. 5. OWNER OR OPERATOR: Roscoe Kartchner ADDRESS: 35 Granite Creek Road Santa Cruz, California 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: None - new prospect 7. RADIOACTIVITY: B. G. - 0.008 mr/hr High - 0.40 mr/hr 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Steep, forested canyon draining into the Grand Canyon of the Colorado River. B. Supai, Hermit, Coconino and Kaibab formations exposed in the vicinity of the prospect. Prospect is on the east side of the Kaibab monocline. Beds dip 20o E. No faulting noted in the immediate area of the prospect. c. Mineral occurrence is found in a medium hard, fine-grained, friable sandstone at the base of the Coconino formation. The mineralized zone is overlain by massive crossbedded Coconino sandstone and underlain by red shales and sand stones of the Hermit formation. The mineralized zone is lens shaped, 2' thick at the widest point, and about 15' wide. No uranium minerals could be identified. Highest radioactivity is associated with irregular lenses that are high in iron oxides and manganese. Weak radioactivity is associated with copper carbonates disseminated in friable white sandstone. - 29- U. S. DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY TRACE ELEMENTS PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY=_ _;R;;,.~G:..:_._P!;:!e!:'.t! 3· OWNER OR LESSEE: R. H. Kartchner ADDRESS: 4. PUBLISHED REFERENCES: 5, MINE WORKINGS: None 6. TYPE OF EXAMINATION: Radiometric reconnaissance 7. RADIOACTIVE DEPOSIT: Yes TYPE AND AGE: Mineralized rock occurs in zone parallel WALL ROCKS: Sandstone to bedding at base of Coconino formation at contact with Hermit shale. ORE MINERALS, PRIMARY: None visible; probably uraninite ORE MINERALS, SECONDARY: No uranium minerals recognized GANGUE MINERALS: Malachite (?) ORE-GANGUE RELATIONSHIP: Ore impregnates sandstone; malachite (?) occurs along fractures. ATTITUDES: SHAPE: Tabular LENGTH (STRIKE 15 feet WIDTH: THICKNESS: 2 feet OR OTHER): 8. COUNTER TYPE: AVERAGE READING FOR DEPOSIT: BACKGROUND READING: Radioactivity ranges from 10 to 100 times background. 9. SAMPLE INFORMATION: TYPE AND MATERIAL CHEM. ASSAY SAMPLE NO. SAMPLED (PERCENT) LOCATION 10. SUPPLEMENTAL REPORT TO FOLLOW: No - 30 - FILE A-P-117 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY R. D. Miller 2. STATE Arizona COUNTY Coconino DATE( S) EXAMINED _ _:::8_-7!.--..:::5~3 ______DISTRICT____ ~U~n=o~r~g~a=n~i~z~ed~------1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN ---=-Pe:;.a::.c:ch::_:S"'pc::rc.:i:.::n,g::.s ______ PROPERTY --~Tw~i~n~T~a~n:.::k:.::s ______ LOCATION: SEC. 14 T. 30 N. R. 8 W. 3. TYPE OF EXAMINATION: Reconnaissance with Professional counter 4. DIRECTIONS TO DEPOSIT: Turn north off U. S. 66 about 7 miles east of Peach Springs and drive 23 miles·to·~unction at sawmill. Take left fork for 16 miles to Twin Tanks in Prospect Valley. Climb hill east of tanks for about 1 mile to deposit near crest. Deposit is due east by Brunton from corral. 5. OWNER OR OPERATOR: Hualpai Indian Reservation AnDRESS: 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Abandoned copper prospect - probably worked during World War I. History and production unknown; workings consist of single shallow pit. 7. RADIOACTIVITY: B.G. .02 - .03 mr/hr Max •• OS mr/hr 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. On steep, wooded slope of high ridge overlooking Prospect Valley from east. B. Near base of cherty Kaibab limestone (Permian). The Toroweap fault forms Prospect Valley and offsets east side several hundred feet higher than west side. c. Hematite, sparse malachite and azurite. - 31 - U. S. ATOMIC ENERGY COMMISSION PRELIMINARY RECONNAISSANCE REPORT PROPERTY ____;J::;a::::c:.::k~p:=_ot~#!...!7 ______FILE NO. ED:R-517 EXAMINED BY____ ~C~-~G~~Ev~enn~sean~------DATE 5-26-55 DISTRICT Cameron 1. STATE Arizona COUNTY Coconino SEC • ---- T. R. NO. OF AERIAL PHmOORAPHS, IF KNO\>/N ------ROAD LOG TO DEPOSIT: See map, no roads. 2. OWNER, OPERATOR: K. H. Harbaugh and Howard Chinn, General Delivery, ADDRESS: Tuba City, Arizona 3. LOCATION OF MINERALIZATION: Chinle "D". 4. SEDIMENTARY STRUCTURE AND LITHOLOGY OF HOST ROCK: Crossbedded, carbonaceous, medium grained sandstone with scattered muu pellets, limonite and jarosite stained 5. SPECIFIC OCCURRENCE OF MINERALIZATION: Mineralization appears to be in carbon and clay material. 6. RELA~ION OF ORE TO TECTONIC FEATURES: No relationship noted. The outcrop occurs on the west side of a small north-south-trending syncline. 7. APPARENT MINERALIZATION CONTROLS: Carbon and permeability 8. O'l'HER FEATURES RELATED TO MINERALIZATION: Limonite and jarosite staining 9. MINERALOGY: Appears to contain carnotite and autunite LO. ESTIMATED DIMENSIONS OF ORE BODY AND/OR MINERALIZED ZONE: - 32 - ED:R-517 11. SAMPLES : ASSAYS (PERCENT) AREA OR VOLUME NO. TYPE THICKNESS U308c V205 REPRESENTED AEC split channel l' ·39 ·53 2 tons Field estimate l' .40 12. PAST PRODUCTION: 13. NEARBY LOCALITIES WHICH SHOW FAVORABLE CHARACTERISTICS? The horizon outcrops along a dry wash and mineralization appears to be spotty. 14. SKETCH MAP: No actual roads to deposit ~ :-... t-ltfle Chinle "D " C' ross Secfr~ N SCALE: 0 3 Miles '-----~ - 33 - FILE ED:R-515 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY c. G. Evensen 2. STATE _..,Ar=i"'zo""n,a;:_ __ COUNTY Coconino DATE ( S) EXAMINED Ma="-Y...:2::::6:,;i!,'-'l""9"'5-'5 _____ DISTRICT Cameron l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN ------ PROPERTY Jackpot no. 8 LOCATION: SEC. ___ T. ___ R. 3. TYPE OF EXAMINATION: 4. DIRECTIONS TO DEPOSIT: No roads (see map for ED:R-517, p. 33) 5 . OWNER OR OPERATOR: K. H. Harbaugh and Howard Chinn ADDRESS: General Delivery Tuba City, Arizona 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: No past production 7. RADIOACTIVITY: Are.a bas high background - over twice normal 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): Host rock is Chinle "D" member, a massive sandstone with some interstitial clay, light gray with some jarosite staining. Mineralization probably occurs in white efflorescence which appears to be MgS04•n520. No observed relationship to tectonic features; apparent mineralization control is leaching of material from behind the rim. FILE A-P-116 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY R. D. Miller 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED __..:;.8-'-6'--..:;.5"'-3 ______DISTRICT___ U~n~o~r~g~a=n=i~z~e~d~------l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Peach Springs PROPERTY Unnamed occurrence of banded silicified sandstone LOCATION: SEC . 24 (?) T. 2 7 N. R. 9 W. 3. TYPE OF EXAMINATION: Reconnaissance with Halross Scintillometer 4. DIRECTIONS TO DEPOSIT: Turn north off U. S. Highway 66 about 7 miles east of Peach Springs. Continue for 15 miles to ranch on west side of road. Ask directions from rancher Frank Beecher (Indian). Trip to deposit includes 4-mile hike into tributary of Diamond Creek Canyon. 5. OWNER OR OPERATOR: Hualpai Indian Reservation ADDRESS: 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: No production or workings 7· RADIOACTIVITY: Not above background 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Conspicuous pinnacle on side of dry wash in area of deep canyons and ridges. B. Altered Coconino sandstone (Permian). Silicified sandstone is alternately banded with iron oxides and manganese oxides forming an isolated steep resistant mass with contorted bedding. Cross-stratified Coconino sandstone on each side of wash is unaltered. c. Quartz, limonite, hematite, manganese oxides. - 35 - U. S. ATOMIC ENERGY COMMISSION PRELIMINARY RECONNAISSANCE REPORT PROPERTY ~---J_a_c_k~p-ot__ #6______FILE NO. ED:R-516 EXAMINED BY.__ ~c._~a~~&~·~e~n~s~enn------DATE 5-26-55 DISTRICT Cameron 1. STATE Arizona COUNTY Coconino SEC. ---- T • R. ---- NO. OF AERIAL PHOTOGRAPHS, IF KNOWN------ROAD LOG TO DEPOSIT: See map; area is covered by a network of jeep trails. 2. OWNER, OPERATOR: K. H. Harbaugh and Howard Chinn, General Delivery, ADDRESS: Tuba City, Arizona 3· LOCATION OF MINERALIZATION: Chinle "D'' 4. SEDIMENTARY STRUCTURE AND LITHOLOGY OF HOST ROCK: Crossbedded, medium-grained sandstone with some carbonaceous and mud material: yellowish-brown color due to limonite and jarosite. 5. SPECIFIC OCCURRENCE OF MINERALIZATION: None visible but probably in carbon and mudstone. 6. RELATION OF ORE TO TECTONIC FEATURES: None observed. Deposit is several miles west of relatively recent cinder cone and lava flows. 7. APPARENT MINERALIZATION CONTROLS: Carbon 8. OTHER FEATURES RELATED TO MINERALIZATION: Limonite and jarosite staining 9· MINERALOGY: None observed 10. ESTIMATED DIMENSIONS OF ORE BODY AND/OR MINERALIZED ZONE: One ton - 36 - ED:R-516 11. SAMPLES: ASSAYS (PERCENT) AREA OR VOLUME NO. TYPE THICKNESS U308e U308c V205 CaC03 REPRESENTED AEC Grab 1 ft. .13 .17 One ton 12. PAST PRODUCTION: None 13. NEARBY LOCALITIES WHICH SHOW FAVORABLE CHARACTERISTICS? Good drilling possibilities 14. SKETCH MAP: Scale 0 ..____ _. 4 Miles N - 37 - FILE A-P-217 PRELIMINARY RECONNAISSANCE REPORT ~XAMINED BY Winston Marks 2. STATE _..:.A:=rc:!i:o:zc:::oc::n:::a___ COUNTY Coconino DATE(S) EXAMINED -----'-'4/'-'5'-'4______DISTRICT____ ~C:::am~e~r~o~n~------l. SAMPLES i'IUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN --~C~a=m=er~o~n=------ PROPERTY --~N~a~v~a~j~o~R~e~s~e~r~v~a~t~i~o~n~------LOCATION: SEC. ____ T. 29 N. R. 8 E. 3. TYPE OF EXAMINATION: Surface scintillometer ~. DIRECTIONS TO DEPOSIT: Follow State Highway 64 three miles toward Grand Canyon; turn north for 2.1 miles. ) . OWNER OR OPERATOR: None ADDRESS: 5. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: None 7· RADIOACTIVITY: 60 - 100 counts per second on Halross over limited area. 3. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Rolling hills to rough canyons. B. Generally Moenkopi with Shinarump remnants. Deposit is in the Moenkopi at what once was apparently the base of a Shinarump channel. C. Iron staining. No uranium mineral identified. - 38 - FILE A-P-115 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY R. D. Miller 2. STATE Arizona COUNTY Coconino DATE ( S) EXAMINED _ _,_7-_,2:;::5-'- 5"-'3'------DISTRICT._____ U~n~o~r~g~a~n~1~·z~e~d~------l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Peach Springs, Arizona PROPERTY National Group of Claims LOCATION: SEC. 16 T. 30 N. R. 6 W. 3· TYPE OF EXAMINATION: Reconnaissance with Professional counter 4. DIRECTIONS TO DEPOSIT: Turn north off U. S. Highway 66 on graveled road 7 miles east of Peach Springs, Arizona, and drive about 37 miles to junction. Turn left (north west) and drive about 3 miles on dirt road past National Tank (stock reservoir) and ranger cabin to junction. Turn right (east) and drive 1/2 mile to workings. 5. OWNER OR OPERATOR: Deposit is on Hualpai Indian Reservation. ADDRESS: 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Abandoned copper prospect last worked during World War I; production unknown. Workings on south side consist of 75 1 trench about S' deep, a 6 1 shaft and several shallow pits of varying depth. North side workings include three 6 1 shafts, a 60 1 shallow trench and a 20 1 adit. 7· RADIOACTIVITY: B.G •• 01 - .02 mr/hr Max •• OS mr/hr in shallow trench on north side. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Wooded hill, steep to gentle slopes. B. Kaibab limestone (Permian). Limestone is cherty and moderately fractured and jointed. Copper minerals are associated with shallow limonite gossan zones along fractures. C. Malachite, azurite, chrysocolla, tenorite (?), bornite, chalcocite, chalcopyrite, pyrite, calcite, hematite and abundant limonite. - 39 - FILE *R-R-250 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY H. Holen and C. Twitchell 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED _..:;l::l:....-.::.16:c..-..::5...:.4 ______DISTRICT_____ u_n_o_r~g~a_n_i_z_e_d ______l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN ____F_re_d_o_n_i_a ______ PROPERTY ____J_oh_n_s_o_n_-_B_a_r_l_o_w ____ . ______ LOCATION: SEC. ___ T. ___ R. 3· TYPE OF EXAMINATION: Surface examination - ElTronics 4. DIRECTIONS TO DEPOSIT: 10 miles east of Houserock Ranch about 1/8 mile south of Highway 89. :> • OWNER OR OPERATOR: Leroy Johnson and Lewis Barlow ADDRESS: Short Creek, Arizona 5. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Three shallow dozer cuts 7· RADIOACTIVITY: B. G. - .02 mr/hr High - .60 mr/hr S. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Gullied plain about 1 mile south of Vermillion Cliffs. B. Unconsolidated remnants of Shinarump (?) conglomerate. Rounded pebbles up to 2" in diameter in a fine yellow sand matrix. C. No visible uranium minerals noted; FeOx stain, carbonaceous trash, some petrified wood fragments. - 40 - FILE 1 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY Harlen K. Holen 2. STATE Arizona COUNTY Coconino DATE( S) EXAMINED -~3 -~2;.::3:.:;:-;!.;55e______DISTRICT.__ ~U~n~o~r~g4a~n~i~z~e~d~------1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Vermillion Cliffs Lodge A-1608 Select %eU308 - 0.645 PROPERTY ·M&R Claims 1-14 A-1609 Grab, 5.0' 0.100 LOCATION: SEC. 11 T. 39 N. R • ...:6:....::E.:..• __ 3. TYPE OF EXAMINATION: Radiometric survey with Precision Model 111 scintillator 4. DIRECTIONS TO DEPOSIT: Approximately 4 miles northwest of Vermillion Cliffs Lodge via dirt road. 5. OWNER OR OPERATOR: Buck Rodgers ADDRESS: Vermillion Cliffs Lodge Via Cameron, Arizona 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Dozer cuts 7. RADIOACTIVITY: B.G. = 0.01 mr/hr Owner reports an assay of 0.45 percent High = 0.80 mr/hr (near mireralized log) U308, 1.70 percent Vz05 , and 1.0 percent Average = 0.20 - 0.30 mr/hr Cu from a 35-lb. sample. 8. DESCRIPTION OF DEPOSIT (A. Topography~ B. Geology, C. Mineralogy): A. Talus-covered rim at base of purple cliffs. B. Mineralization is in the Petrified Forest member of the Chinle formation. There appears to be considerable slumping in the area, but no definite structure was noted near the mineralized zone. C. Carnotite and copper carbonates are associated with carbonaceous trash. Mineralization occurs as scattered nodules, pockets and lenses in a soft, medium grained white silty sandstone. The ore-bearing sandstone is very irregular and ranges from 1 to 10 feet in thickness. - 41- FILE R-R-146 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY E. N. King and R. J. Meehan 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED _ _;::.2_-1:.:..4;_-..::.5~3------DISTRICT Unorganized l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Marble Canyon Trading Post PROPERTY ____U~n_k_n_o_wn ______ LOCATION: SEC. ? T. 40 N. R. 7 E. ---'--- 3· TYPE OF EXAMINATION: Surface - scintillometer 4. DIRECTIONS TO DEPOSIT: Approximately 1\ miles north of Lee's Ferry 5. OWNER OR OPERATOR: Unknown ADDRESS: 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: New prospect; no production; small prospect pit 7· RADIOACTIVITY: B. G. 10 cps High 40 cps 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A- Steep Shinarump and Moenkopi rim. B- Mineralization in channel at base of Shinarump. c- CuOx and FeOx - no uranium minerals noted. - 42- FILE R-R-274 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY H. Holen and L. Twitchell 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED 12-28-54 --~~~~------DISTRICT.______l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Fredonia, Arizona PROPERTY Befuddled Claims (80 claims) LOCATION: SEC.27, 28 T. 39 N. R. 4 E. 32' 33 3. TYPE OF EXAMINATION: Radiometric, scintillator, Model 111 4. DIRECTIONS TO DEPOSIT: Three miles + east of Houserock Ranch about one mile north of u. S. Highway 89 at base of Vermillion Cliffs. 5 . OWNER OR OPERATOR: Budge Porritt ADDRESS: Jacobs Lake, Arizona 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: None - small hand dug pits. 7. RADIOACTIVITY: B. G. - 0,013 mr/hr High - 0.120 mr/hr 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Low, gullied knobs at base of Vermillion Cliffs, B. Petrified Forest member of the Chinle formation. Appears to be slump blocks from cliffs. C. No uranium mineralization noted; minor amount of copper stain. Highest count in fine- to-medium-grained, white-brown sandstone. Thin band of yellow and m~ium jasper had a count of 0.120 mr/hr. - 43- FILE R-Rs-274 SUPPLEMENT TO PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY H. Holen and L. Twitche~ SUPPLEMENT NO. __ l ______------DATE(S) OF EXAMINATION 4-14-55 DATE OF THIS REPORT _.....!w..lt.~--- DATE OF PREVIOUS REPORT 12-28-54 l . SAMPLE DATA 2. STATE Arizona COUNTY Coconino """""S;;-;v;~AS;i;iS~A~Yr;'OfOc.:U:...3~.:.0?f8~1T?C;cc-OTHER ELEMENTS NUMBER RADIOMETRIC CHEMICAL CHEMICAL DISTRICT Unorganized NEAREST TOWN Fredonia. Arizona PROPERTY Befuddled Claims (52 claims) LOCATION: SEC. ~ T. 39 N. n. ~ E. 3. OWNER OR OPERATOR: David Hawkins et al. ADDRE~S: 608 North 24th Street Colorado Springs, Colorado 4. ADDITIONAL INl<'ORMATION ON MINERALOGY, RADIOACTIVI'l'Y, GEOLOGY, MINING, ETC. : Seventeen holes totaling 3300 feet have been drilled in the Petrified F·orest member of the Chinle formation. The holes were probed by the operators who reported negative results. Most of the holes did not reach the Shinarump, although two or three of them went through the Shinarump and about 100 feet into the Moenkopi. A very minor amount of copper carbonates and pyrite was found in the cuttings. 5 . TO BE FOLLOWED BY: ADDITIONAL SUPPLEMENTARY REPORT ___ MEMORANDUM REPORT __BOUND REPORT ___ - 44- FILE *R-R-253 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY H. Holen 2. STATE Arizona C'JUNTY Coconino DATE(S) EXAMINED November 27, 1954 DISTRICT____ ~U~n~o~r~g=an=i~z~e~d~------l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN _ _;F_;r_;e_:d:.:o~n:::i~a ______ (a) F 1319 Grab 0.107 PROPERTY _ _:J:.:a~y-=B:::i=rd_C=l=a:.:i=m=s~------(b) F 1320 Channel 1° 0.23 (c) F 1321 Channel o8 0.033 LOCATION: 6 38 N. R. 6 E. (a) Sample from crushed, re-cemented conglomerate SEC· ____ T. (b) Sample from pebble congl. with visible carnotite (c) Sample from hard white sandstone with blacik TYPE OF EXAMINATION: Radiometric, bandings taken from ledge above the Scintillator Model 111 conglomerate on the west side of wash 4. DIRECTIONS TO DEPOSIT: About three miles west of the Cliff Dweller's Lodge on North side of highway 5. OWNER OR OPERATOR: G. C. Bonham ADDRESS: Kanab, Utah 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: 7. RADIOACTIVITY: B. G. " .015 mr/hr High - 2.30 mr/hr (See sketch below) 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Deeply dissected canyons - steep cliffs at edge of Purple Cliffs. B. Apparently a gravel and sand lens in the lower Chinle formation. The conglomerate lenses look like typical Shinarump, but the stratigraphic position implies that the deposit is in the Chinle. C. Carnotite and green Cu stain associated with silicified logs and carbonaceous trash. - 45- FILE *R-R-253 9. PROOF OF OWNERSHIP RECEIVED: No PERMISSION TO PUBLISH RECEIVED: No LO. OTHER INVESTIGATIONS: Ll. ADDITIONAL INFORMATION: Owner plans to ship a load of ore to Marysvale in the near future • .2. MAP: IJ c_.b) / X I. b 'mV"IhV' ~A"f1i41--~----- It' X':l.3 "'""\n'C'. To us - I .Jc.,t}LE.: 0 ¢oo f:eei:- (q,;opro )( ivne:te) 3. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW Yes - 4 6- R-R-253 Al.terna.·c~ hilrd and soft: Highest ccu.nt rnterbedded ~ine, white friable silty sandstone and pebble Triab1..e 'oeds of red sha.~e a c base a~ conglomere.t conglomerate Section A-A' ·Rea, rz..:re.y, purple ~~n~ni't~~- clays C Red gray purple bentonitic .c.e.:::-c., ;:e 2:~red 7_ thin-bedded shales Secti..oYl B - 6 1 - 47 - FILE R~R-213 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY Harrison S. Scott 2 . STATE _.:cA:.c.r_i_z_o_na___ COUNTY Coconino DATE( S) EXAMINED ___:6_-=.17:_-_:5..;.4 _____ DISTRICT__ u_n_k_n_ow_n ______l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Marble Canyon Lodge PROPERTY Thomas No. 1 Claim F-1352 Grab .4800 LOCATION: Unsurveyed SEC. T. 39 N. R. 7 W. ? F-1353 Grab .0500 3· TYPE OF EXAMINATION: F-1354 Grab .0627 Surface examination of outcrops with Halross scintillometer 4. DIRECTIONS TO DEPOSIT: 12 miles South of Navajo Bridge on Highway 89 5 . OWNER OR OPERATOR: R. J. Hassett, F. and B. Mining Company, ADDRESS: 351 South State Street, Salt Lake City, Utah 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Have shipped some two truck loads of ore from bulldozer cuts. 7. RADIOACTIVITY: Halross - B. G. - 30 cps The high count was spotty. Top 3000 cps 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Cliff face formed by Moenkopi, Shinarump, Chinle, Navajo. B. some sand and clay lenses in the Fire Clay member of the Chinle. c. Some oxides of uranium were believed to have been observed. - 48- FILE A-P-164 PRELTI4INARY RECONNAISSANCE REPORT EXAMINED BY R. D. Miller and Floyd William!2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED January 9, 1954 DISTRICT Grand Canyon Mining District 1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN ___G_r_a_n_d_C_a_n~y~o_n ______ PROPERTY .Rowes Well Property LOCATION: SEC. 28 T. 30 N. R. 2 E. 3. TYPE OF EXAMINATION: Underground and surface radiometric 4. DIRECTIONS TO DEPOSIT: From Grand Canyon follow sign to Rowes Well Tourist Camp 3 miles southwest on dirt (improved) road. Deposit is on small knoll 200 feet west of lodge, 5 . OWNER OR OPERATOR: Abandoned as a mining property. Rowes Well Tourist Court now on ADDRESS: original mining claim. 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Last worked in 1904; production unknown. One adit, 20 1 trench plus 30 1 S.300W. into knoll. One short open cut 80 1 north of adit. 7. RADIOACTIVITY: Detectron Geiger counter, B.G. 0.02 Max. 0.035 mr/hr. Pine-needle covered soil nearly contaminated, gave reading 0,10 mr/hr. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Low rolling hills forested with pine trees. B. Brecciated Kaibab (Permian) limestone near Bright Angel fault. C. Malachite, azurite, limonite, hematite. - 49 - FILE A-P-44 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY A. J. Rambosels. Gerald Weathers 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED -~3/Lt2~5L/5,!.,3!....-_____ DISTRICT.____ ~U~n~kn~ow~n~------l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Williams, Arizona F 8359 Chip PROPERTY --~P~a~c~k~r~a~t ______ LOCATION: SEC. 12? T. 26 N. R. 22 E. 3· TYPE OF EXAMINATION: Surface scintillometer 4. DIRECTIONS TO DEPOSIT: North on U. S. Highway 64 from U. S. Highway 66 for approximately 27 miles. Property is approximately 1 mile north of Valle road and U. S. 64 junction and 1/2 mile east of U. S. 64. 5 • OWNER OR OPERATOR: John Osborn ADDRESS: Buckeye (?) Arizona 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: History - approximately $8000 Cu production (1936 @ 16¢) reported. Workings - two shallow shafts, inclined adit, some drifting and crosscutting. 7. RADIOACTIVITY: B. G. 0.03 mr/hr Max. 0.35 mr/hr 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Flat, sparsely timbered area east of U. S. Highway 64. B. Sandstone lens in Kaibab limestone?; sandstone bed mineralized with Cu minerals. C. Cu carbonates. - 50- FILE ED-R-1145 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY W. P. Horner and D. F. Olsen 2. STATE __A=r.::oi,_z"-on::.:;a:::_. __ COUNTY Coconino DATE(S) EXAMINED March 5 1953 DISTRICT__ ~C~a~m~e::.:;r~o~n~------1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Cameron, Arizona %VzOs PROPERTY -~N~a~v~a~j~o-=I~n~d~i~an~R~e~s~e~r~v~a_t_1~·o_n___ 28455 Grab o. 03 ~0.01 0,01 LOCATION: SEC. ___ T. ____ R. 3. TYPE OF EXAMINATION: Surface, geologic and radiometric 4. DIRECTIONS TO DEPOSIT: See map 5. OWNER OR OPERATOR: Navajo Indian Reservation ADDRESS: 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: None. Discovered by airborne reconnaissance methods; anomaly No. 43. 7. RADIOACTIVITY: Area traversed with Halross Scintillometer and Precision Scintillator Background Average count High count Halross 15 cps 40 cps 200 cps Scintillator • 02 mr/hr .05 mr/hr .4 mr/hr 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Small canyon accessible by jeep. B. Radioactivity from a coarse-grained, crossbedded, well-cemented sandstone layer of the Shinarump formation. The sandstone is exposed along the top edges of a small steep-sided canyon, Abnormal radioactivity on west side of canyon in area about 100 feet by 50 feet, Sample taken from 200 cps area, C, No radioactive mineral seen. - 51 - FILE ED-R-1145 9· PROOF OF OWNERSHIP RECEIVED: PERMISSION TO PUBLISH RECEIVED: 10. OTHER INVESTIGATIONS: ll. ADDITIONAL INFORMATION: 12. MAP: 13. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW _ __;N;;..o____ _ - 52- I FILE *R-R-277 PRELIMINARY RECONNAISSANCE REPORT EXAMTNED BY H. Holen and L, Twitchell 2. STATE _ _;A.::r::.:1:.:·z::.:o:.:n:;:a::._ __ COUNTY Coconino DATE(S) EXAMINED 1-11~55 --~~~~------DISTRICT.______1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Marble Canyon Lodge F-1327 Channel 2,0 1 %eU303 - 0.005 PROPERTY ___s_n_a_f_u_c __ la_i_m_s ______from gray clay bed below jasper bed F-1328 Select high-grade %eU303 - 0,365 LOCATION: from 1" -12" jasper bed SEC. ----- T. ----- R. F-1329 Grab %eU308 - 0,100 representative sample of 1"-12" jasper bed 3· TYPE OF EXAMINATION: F-1330 Channel 2.0' %eU303 - 0,004 Radiometric, Scintillator, Precision, from tan-gray sandy clay above jasper bed Model 111 4. DIRECTIONS TO DEPOSIT: Take dirt road north from U. S. 89 about liJ! miles west of Marble Canyon Lodge; approximately five miles by rough, steep, jeep road to deposit. 5 • OWNER OR OPERATOR: J, D. Rollins ADDRESS: Cliff Dwellers' Lodge, Via Cameron, Arizona 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: None, one 150 1 dozer cut 7· RADIOACTIVITY: B. G. - 0.017 mr/hr High - 0,75 mr/hr 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Deeply dissected benches at base of purple cliffs. B. Deposit is in the Petrified Forest member of the Chinle formation. The dense clay-sand layer in which the mineralization is found is bounded above and below by red, purple and gray soft clays and marls. C. Mineralization is found in a somewhat porous red and yellow jasper bed, Very small hair-like crystals of uranophane were noted, but most of the radioactivity seems to come from small nodules of soft, black uraniferous carbon in the jasper, - 53 - FILE SL-216 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY A, R. Tagg 2. STATE Arizona COUNTY Coconino DATE ( S) EXAMINED April 17, 1956 DISTRICT Unorganized 1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Marble Canyon PROPERTY Hope Claims LOCATION: SEC. -----6 T. 39 N, R. ------6 E. 3. TYPE OF EXAMINATION: Surface radiometric and geologic 4. DIRECTIONS TO DEPOSIT: Take road northwest from U. S. Highway 89 at Vermillion Cliffs Lodge (about 4 miles southwest of Navajo Bridge). Turn right at first fork; go 0.3 miles. Turn left and go 0.6 miles to property, 5. OWNER OR OPERATOR: Jess Cooper ADDRESS: 1812 Franklin Olympia, Washington 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: New prospect 7. RADIOACTIVITY: Background and highest reading 0.02 mr/hr 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Intricate system of valleys and hills in Chinle sandstone, Shinarump conglomerate and Moenkopi formation on bench below the Vermillion Cliffs northwest of Grand Canyon, B. Shinarump conglomerate, Some possible minor faulting on the south side of this northeast- and north-trending channel. Channel fill in the area is a gray to yellow, fine- to coarse-grained sandstone with little actual conglomerate, There also is considerable clay and carbonaceous trash, The slight count present is associated with the latter, c. Much FeOX staining but no uranium minerals were seen, - 54- FILE A-P-111 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY =~~R!;h_. _!DL.._£:!M!.i!.ll!o.!e:ur;:______2. STATE -BA~r~i~z~on~a~----- COUNTY Coconino DATE(S) EXAMINED 7-13-53 DISTRICT Cedar Ranch (Flagstaff) 1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN __£F!.la~g~s~t~a~f~f ______ PROPERTY Clover Lead Mine No. 1 LOCATION: SEC. 21 T. 25 N. R. 6 E. 3. TYPE OF EXAMINATION: Rim reconnaissance with Professional counter and Halross Scintillometer 4. DIRECTIONS TO DEPOSIT: Turn west off Highway 89 twenty miles north of Flagstaff. Follow road for 8.1 miles to junetion. Take Cedar Ranch road (left fork) for 7.6 miles to cattleguard. Walk 1/4 mile up draw. 5 . OWNER OR OPERATOR: Daniel A. Hogan ADDRESS: Glagstaff, Arizona 6. MINE OR PROPERTY HISTORY 1 PRODUCTION AND WORKINGS: Claim located 5/22/49. No production or workings. 7. RADIOACTIVITY: Halross: B.G. 45 cps. Max. 85 cps Professional: B.G •• 02 mr/hr Max •• OS mr/hr 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Steep, wooded hillside. B. Moenkopi formation about 250 feet thick capped by basalt. Consists of red, purple and grey mudstones interbedded with fine-grained white micaceous sand stones in upper part. Lenticular basal member (25 feet) consists of coarse to very coarse limonite-stained sandstone and conglomerate lenses with pebbles and cobbles of jasper, gneiss, quartzite and quartz. Underlain by Kaibab formation. C. Jarosite, limonite, carbonized wood trash and limbs. Silicified tree trunks. - 55 - FILE SL-208 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY H. Holen, A. R. Tagg 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED February 10, 1956 DISTRICT Unorganized 1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Vermillion Cliffs Lodge A 1686 Select PROPERTY Sam Claims LOCATION: (school section) SEC. __::.2 __ T. 39 N. R• ...;6:.....;::E.;... __ 3· TYPE OF EXAMINATION: Radiometric of outcrops 4. DIRECTIONS TO DEPOSIT: Take dirt road north from US-89 at Vermillion Cliffs Lodge to Badger Creek wash. Claims are near base of Vermillion Cliffs on west side of wash. (guide required) Company plans to build road to property. 5· OWNER OR OPERATOR: Raymond Taylor, President ADDRESS: Consumers Agency Box 504, Provo, Utah 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: New prospect, no workings RADIOACTIVITY: PRI Model 111 scintillator: Background - 0.01 mr/hr; High - 1.0 mr/hr; readings of 0.5 to 1.0 mr/hr at several places 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Intricate system of dry washes and ridges on a bench at the base of the Vermillion Cliffs. B. Mineralized zone is in a white, silty sandstone bed in the Petrified Forest member of the Chinle formation. Gently northerly dipping Triassic and Jurassic sediments exposed in the vicinity of the prospect. c. Secondary yellow uranium mineral(s) as scattered nodules and lenses associated with black carbonaceous material. Minor Cu carbonates and considerable brown and reddish-brown FeOx. - 56 - FILE A-P-231 * PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY Lloyd J. Conklin and Frank A. 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED 7/13/54 Sayre DISTRICT__ ~N~a~v~a~j~o~R~e~s~e~r~v~a~t~i~o~n~------1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN --~C~a~m~e~r~o~n~------%eU303 %cU303 PROPERTY 100942 4.0' Channel .20 0.189 --~B~l~a~c~k~h~a;ir~N~o~·~4~------l00942A 4.0' " .18 o. 048** LOCATION: Unsurveyed l00942B 1.4' " .02 0.023 SEC. ___ T. ___ R. 100943 3.0 1 " .15 0.141 l00943A l.O' " .20 0.166 3· TYPE OF EXAMINATION: ** Out of equilibrium 4. DIRECTIONS TO DEPOSIT: Go 2~ miles north from Grey Mountain Trading Post which is located approximately 10 miles south of Cameron on Route 89; turn right; go 1\ miles northeast. 5. OWNER OR OPERATOR: Navajo Reservation ADDRESS: 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: None 7· RADIOACTIVITY: B.G. .08 mr/hr Av. l. 90 mr/hr Max. 4.00 mr/hr 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Low-lying ridges with deep washes from fast runoff of surface drainage to the Little Colorado River 3 miles to the north. Very little vegetation is present. B. Deposit in Chinle shale immediately over Shinarump conglomerate. In immediate area very little Chinle or Shinarump is present, The predominant formation is the Moenkopi. C. Radioactive black carboniferous material with metatorbernite (?). - 57 - U. S, DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY TRACE ELEMENTS PRELIMINARY RECONNAISS!;\NCE REPORT EXAMINED BY==--~H!"'a¥r'"'ry:oi-'C....,_• ..,.G ... r .. an...,g..,e.,.r __ USGS - PRR NO. DATE EXAMINED 4/1/51 DATE 4/9/51 STATE .-----::;Ar:=-=-iz..,o~n:"'a'------L NAME OF PROPERTY: Unknown COUNTY Coconino DISTRICT ---:=-'Wh=i"'t""e-'Me""."'s'::a:----- ;:!. DIRECTIONS TO PROPERTY: 27 miles northeast SEC. ___ T. 38 N. R. 9 E. of the Gap, Arizona 3. OWNER OR LESSEE: ADDRESS: 4. PUBLISHED REFERENCES: 5. MINE WORKINGS: 6. TYPE OF EXAMINATION: Radiometric reconnaissance of dumps 7. RADIOACTIVE DEPOSIT: TYPE AND AGE: Jurassic WALL ROCKS: Navajo sandstone ORE MINERALS, PRIMARY: ORE MINERALS, SECONDARY: secondary: Malachite GANGUE MINERALS: ORE-GANGUE RElATIONSHIP: ATTITUDES: SHAPE: LENGTH (STRIKE WIDTH: THICKNESS: OR OTHER): 8. COUNTER TYPE: Nuclear AVERAGE READING FOR DEPOSIT: BACKGROUND READING: Deposit is non-radioactive. 9. SAMPLE INFORMATION: TYPE AND MATERIAL CHEM. ASSAY SAMPLE NO. SAMPLED (PERCENT) LOCATION 10. SUPPLEMENTAL REPORT TO FOLLOW: - 58 - FILE A-P-87 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY R. D. Miller 2. STATE -~A~r~iz~o_n_a______COUNTY Coconino DATE(S) EXAMINED _.....,!!6~-4:t:-:d5:!.3------DISTRICT__ ~U~n~or~g~a~n~i~z~e~d~------1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN __.::.:A:::s~hf::;o:::r:.:k~------ PROPERTY --~V:::a::;r::;io::;u::;s::;______ LOCATION: SEC. ___ T. 23 N. R. 2, 3 W. 3· TYPE OF EXAMINATION: Rapid reconnaissance of flagstone quarries and outcrops with Halross scintillometer 4. DIRECTIONS TO DEPOSIT: Take road north from Ashfork, crossing Santa Fe Railroad track~ for about 11 miles to first of numerous flagstone quarries with connecting roads. 5. OWNER OR OPERATOR: Various ADDRESS: 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Extensive shallow quarries 7. RADIOACTIVITY: None 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Rolling hills with thick juniper, B. Coconino sandstone cross stratified at steep angles; basalt capping on adjacent hills. C. Red to white sandstone quarried for flagstone. - 59 - RECONNAISSANCE REPORT Assay results Reference No. UP-349 (USBM) Sample Equiv. Chem. State --Ar~i~z~o~n~a~~~~---- Date ------~A~u~g~u~s~t~l~9~5~0~------District Grand Canyon - South Rim County --~C~o~c~o~n~i~n~o~~--"--~=- Sec. ·--- T. 26 N. R. 2 E. l. NAME OF PROSPECT: 25 mi. north of Grand Canyon junction l/2 mi. east road SAMPLES SUBMITrED BY: Charles H. Dunning, Ariz. Dept. Mineral Resources, State Fair Grounds, Phoenix, Ariz., and J. p, Ryan, OWNER OF CLAIM, MINE OR LAND: P.O. Box 1228, Kingman, Arizona A. F. Michlebeck EXAMINED BY: R. D. Nininger DATE(S): June 9, 1950 NO. SAMPLES COLLECTED: None TYPE SAMPLE: LIST OF AVAI1JI:BIE MAPS: LIST OF PREVIOUS REPORTS: Geol. Map State of' Ariz. Ariz. Bureau of Mines and u.s.G.S. 2. DESCRIPTION OF EXAMINATION: Brief' radiometric reconnaissance Two open pits 10' x 20 1 connected by tunnel 4o• Sketch workings long, 15' deep; used as refuse dump. (with sample locations) GEOLOGY: Moenkopi sandstone residual about 1 mile square on Kaibab limestone. 3· TYPE OF DEPOSIT: Copper-stained sandstone. 4. GEOLOGIC E~IRONMENT: Flat-lying redMoenkopi sandstone. 5 .• MINERALOGIC ASSOCIATIONS: Secondary copper minerals. 6, HISTCRY OF PROSPECT: Reported few tons Cu ore shipped 30 - 40 years ago - 6o- FILE A-P-218 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY A. J. Rambosek and Winston Markfi2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED 5/20/54 ----'=-=:::.=:.:;.___ DISTRICT.____ ~U~n~n~am~e~d~------1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN ----~C~a~m~e~r~o~n~------ PROPERTY --~U~n=n=a=m=e=d------100532A Select sample 0.16 0.13 100532B Select sample 0.09 0.06 LOCATION: SEC .• ___ T. 29 N. R. 8 E. 3. TYPE OF EXAMINATION: Surface scintillometer 4. DIRECTIONS TO DEPOSIT: From Cameron follow State Highway 64 west for approximately 4 miles, turn right off pavement. Remnants of Shinarump are found in area. Approximately 2.5 miles north of highway. 5. OWNER OR OPERATOR: Found by Robert Blackhair (Navajo), Cameron, Arizona ADDRESS: 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: None 7· RADIOACTIVITY: Several anomalous areas near Moenkopi-Shinarump contact. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Flat mesas formed by dry washes and canyons eroded in sedimentary formations. B. Shinarump remnants underlain by Moenkopi shale and Kaibab limestone. Bleached areas of anomalous radioactivity at contact of Shinarump and Moenkopi along what are probably shallow paleostream channels. c. FeOx, CuOx, no uranium mineral identified. - 61- U. S. DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY TRACE ELEMENTS PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY Harry C. Granger USGS - PRR NO, DATE 4/5/51 DATE EXAMINED 3/31/51 STATE .---"Ar"'-J."'.z,o"'n""a'------COUNTY Coconino 1. NAME OF PROPERTY: Hosteen Nez Mining Company DISTRICT --..,..-.,-,.---.,---- Deposit No. 1 SEC. 32 T. 28 N. R. 12 E. 2. DIRECTIONS TO PROPERTY: Inquire at Lorenso Hubbell Trading Post, Winslow. 3. OWNER OR LESSEE: Hosteen Nez Mining Company Managed by! Roman Hubbell ADDRESS: Winslow, Arizona 4. PUBLISHED REFERENCES: U.S. G. S. Prof'. Paper 93 5. MINE WORKINGS: None 6. TYPE OF EXAMINATION: Radiometric reconnaissance 7, RADIOACTIVE DEPOSIT: TYPE AND AGE: Probably upper Chinle (Triassic) WALL ROCKS: Shaly sandstone and sandstone ORE MINERALS, PRIMARY: ORE MINERALS, SECONDARY: Carnotite GANGUE MINERALS: Mn oxides and carbonized wood ORE-GANGUE RELATIONSHIP: 8. ATriTUDES: Strikes northwesterly; dips about 30 NE. SHAPE: lenticular LENGTH (STRIKE WIDTH: THICKNESS 12 feet OR OTHER): 70 feet maximum Counter type: Nuclear Background: 1-4 divs. on the 0.2 scale 9· SAMPLE INFORMATION: TYPE AND MATERIAL \(>EU OR U308 CHEM. ASSp;y SAMPLE NO. SAMPLED OR C/M (PERCENT) LOCATION HG-36-51 chip-channel 0.037 0.035 Shale deposit 10, SUPPLEMENTAL REPORT TO FOLLOW? - 62 - I U. S.. DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY TRACE ELEMENTS PRELIMINARY RECONNAISSANCE REPORT EXAM:INED BY=__ ..,H~aro:.r&:,y1;-'-C._..-l.l:GraL:!2.J.D:Jllj;j,l:ear:._ __ USGS - PRR NO. DATE EXAMINED 3/31/51 DATE STATE .---~A~r~i~z~o~n~a ______1. NAME OF PROPERTY: Hosteen Nez Mining Co. COUNTY CoconinQ property Deposit No. 2 DISTRICT =----;;;--.,....,,-...---;::-~cr;--,..- 2. DIRECTIONS TC PROPERTY: Inquire at Lorenzo SEC. 5 T. 27 N. R. 12 E. Hubbell Trading Post, Winslow. 3· OWNER OR LESSEE: Hosteen Nez Mining Co. Managed by: Roman Hubbell ADDRESS: Winslow, Arizona 4. FUBLISHED REFERENCES: U.S.G.S. Prof. Paper 93 5. MINE WORKINGS: None 6. TYPE OF EXAMINATION: Radiometric reconnaissance 7. RADIOACTIVE DEPOSIT: TYPE AND AGE: Probably upper Chinle (Triassic) WALL ROCKS: Shaley sandstone ORE MINERALS, PRIMARY: ORE MINERALS, SE(CONDARY: Carnotite GANGUE MINERALS: Mn oxides (ps ilomelane) and carbonized wood ORE-GANGUE RELATIONSHIP: ATTITUDES: C~ps a knoll on a ridge SHAPE: lenticular LENGTH (STRIKE WIDTH: THICKNESS: 6-9 feet OR OTHER): about 100 feet 8. COUNTER TYPE: Nuclear AVERAGE READING FOR DEPOSIT: BACKGROUND READING: l-4 divs. on the 0.2 scale 9. SAMPLE INFORMATION: TYPE AND MATERIAL CHEM. ASSAY SAMPLE NO. SAMPLED (PERCENT) LOCATION HG-68-51 1 high grade 1 0.42 0.44 Four tons of rock were picked from the surface and shipped to Durango and reportedly rejected because of the high lime content (about 12%). The shipment assayed 0.25% U308. 10. SUPPLEMENTAL REPORT TC FOLLOW: No - 63 - FILE R-R-214 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY H. Scott and L. Twitchell 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED July 16, 1954 DISTRICT Unknown l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Vermillion Cliff Lodge PROPERTY Copper King No. l Claim LOCATION: SEC. l T. 39 N. R. 6 E. 3. TYPE OF EXAMINATION: Surface examination of outcrops 4. DIRECTIONS TO DEPOSIT: Road leading north from Lodge; approximately 3 miles. 5· OWNER OR OPERATOR: Paul DeRoss, owner, Cliff Dweller's Lodge, Cameron, Arizona ADDRESS: Triumph Oil Co., lessee 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: A few prospect pits 7· RADIOACTIVITY: Halross - B.G. - 20 cps Eltronics - B.G. - .04 mr/hr High - 500 cps High - .5 mr/hr 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A, Steep hilly country on top of Shinarump rim. B. A sandy bed in the Fire Clay member of the Chinle. c. Numerous stringers of carbonaceous material. - 64 - I FILE R-R-202 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY H. Scott and E. N. King 2 • STATE _.:..A:::r..:i;::z::.o.::n.::a ___ COUNTY Coconino DATE (S) EXAMINED __8;;._-_4_-;;;.54.;.______DISTRICT__ ..:U.:..n.:..k.:..n.:..own~------1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TCWN Cliff Dweller's Lodge PROPERTY Rainbow Claim LOCATION: SEC. --- T. 40 S. R. 2 E. 3. TYPE OF EXAMINATION: Surface examination of outcrops with Eltronics counter and Halross scintillometer 4. DIRECTIONS TC DEPOSIT: Dirt road leaves highway about 2 miles west of Lodge. Deposit is at end of road, about 2 miles. 5. OWNER OR OPERATCR: A. E. Greene, Jr., and M. Shoppman (owners) Cliff Dweller's Lodge, ADDRESS: Richard Delano, (lessee) Cliff Dweller's Lodge, Marble Canyon, Arizona Marble Canyon, Arizona 6. MINE OR PROPERTY HISTCRY, PRODUCTION AND WORKINGS: Some bulldozer work. 7. RADIOACTIVITY: Halross - B. G. - 20 cps, top 2000 cps Eltronics - B. G, - .05 mr/hr, Top 1.0 mr/hr 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Deposit up a steep canyon in the cliffs overlooking the highway. B. A concentration of logs in a medium-coarse sandstone; may be a channel. Located in the Fire Clay member of the Chinle. There is a series of small faults trending approximately east-west in the area. c. Some oxides of uranium were found in both logs and sand, - 65 - FILE RA-14 SUPPLEMENT TO PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY A. J. Rambosek and E. N, King SUPPLEMENT NO. 1 DATE(S) OF EXAMINATION August 19, 1952 DATE OF THIS REPORT Augi.isr19;1952 DATE OF PREVIOUS REPORT De;. 2~. 1951 1. SAMPLE DATA 2. STATE Arizona COUN'l'Y .Qoconino --n;;m'r:Ai.7Sii;;Si;:;,A;:;;,Y;:;%c..:U::...3c0%8;;r.;r;rrr-.r-OTHER ELEMENTS NUMBER RADIOMETRIC CHEMICAL CHEMICAL DISTRICT Unnamed NEAREST TOWN Peach Springs PROPERTY Ridenour Mine LOCATION: SEC. _Q_ T. 3J N. R. 8 w. 3· OWNb"R OR OPERATOR: E. L. Ming, Dan Ming, Pryor Evans ADDRESS: Kingman, Arizona 4. ADDITIONAL INFORMATION ON MINERALOGY, RADIOACTIVITY, GEOLOGY, MINING, ETC. : The deposit is a ~issure type in what is probably the Supai Sandstone. Pro duction is reported to have been started as early as 1887 and continued intermit tently until 1915-1916. Early operations mined the copper carbonate minerals, apparently upgraded the ore by hand methods, packed the ore out on burros 4 miles to the rim o~ the canyon, then hauled the ore 6o miles by ~reight wagons to the railroad. Esch wagon hauled two tons, each team pulled two wagons, and two teams were used to make a trip each week when the mine operated in 1915 and 1916. Total production is estimated to be less than 1000 tons ~or the years 1915 and 1916. An open-stope method o~ mining was used, pillars being left to support ground when necessary. The dump contains 12,000 to 15,000 tons o~ material (200 x 400 x 3 ~eet thick at 20 cu. ~t. per ton broken material). Approximately the same a amount o~ material was used as bac~ill in the mine. Principal uranium mineral seems to be carnotite. Scintillometer readings o~ . I 3000 cps were noted (B.G.lO cps). These were most pronounced in areas at or near water drips or ~ractures in the sandstone in the hanging wall o~ the ~issure. In no place did mineralization penetrate more than 2 to 6 inches into the hanging wall ~rom the hanging wall ~ace, indicating a surface concentration due at least in part to evaporation of past mine uranium-bearing water. Several small (tn x t•) stalactites (calcareous and ~or siliceous material) were noted wherever high readings were obtained. Also, water caught ~rom one o~ the stronger drips (approximately 1 cup in t hour) indicated presence o~ urani~erous minerals in solution. No anomalies were noted on the dump. 5 . TO BE FOLLOWED BY: ADDITIONAL SUPPLEMENTARY REPORT ___ MEMORANDUM REPORT BOUND REPORT ___ - 66 - I SH.,w1uc LllcATtoN N oF f?1 DENoaR. MlNE 2. Cl/APEL CLAIM SCALE: 0 ...._....,..,.,:---_, 180 Miles usa<;> Phoenix '•...... •, L ..,• () Lagvna I L..af<' e I ~ I I l / " I / ' / " / ' / ' ' / ' / " ' / ' / ' ' ' ' , __ Loc...ar J o rJ MAP CHAPEL. CL.AIM ~ RiOEr./OU/'1 16 Miles SCALE: 0~-----' (approximate) - 67 - PRELIMINARY RECONNAISSANCE REPORT-RG-34 1 • SAMPLE INFORMATION: 2. STATE Arizona NUMBER TYPE RADIOACTIVITY COUNTY Coconino DISTRICT Grand Canyon P-6318 channel weak CLAIM/MINE Anita Mine near Anita P-6319 channel weak NEAREST TOWN ;------,,.---- 1'-6320 grab weak SEC. T. 29 N. R. 1 E. (high grade) 3· OWNER: ADDRESS: 4. PREVIOUS WORK: 5. TYPE GEIGER COUNTER _ _,F'-';f;"'e""l,.d.'-'c"-'o""u""n""t"'er,___ MFR __...,N ... IC,.,C,._ ____ MODEL _ _,2._,60"1'-"0A...__ BACKGROUND ON ---"0_,.,.2=----- SCALE---- C/M OR DIAL READING OF _,.0""1 __ 6. DESCRIPTION OF EXAMINATION: RESULTS: TYPE OF MAPPING Exceedingly weak radioactivity GEOLOGIC RADIOMETRIC DETAIL RECONN. X X SURFACF. X X UNDRGRND. X X 7. MINERALOGIC ASSOCIATION: Malachite, limonite, azurite. 8. GEOLOGIC ENVIRONMENT: Kaibab limestone (Permian). Brown sandstone, conglomeratic in places; white, gray, buff limestone, some is sandy; white thin-bedded shale. 9· TYPE OF DEPOSIT: Copper carbonate disseminated in limestone and sandstone as a replacement of limestone and concentrated along joints of these rocks. J. GEOLOGIC SKETCH MAP: 11. EXAMINED BY Russell Gibson 12. DATE(S) _ _,.8"-/.._251.././...1.5.=..1 ____ 13. HAS A PROOF OFOWNERSHIP FORM BEEN DISTRIBUTED ___,N.,.0'---- 14. SUPPLEMENTARY REPORT TO FOLLOW __ NOT NECESSARY2f.._ - 68 - FILE A-P-41 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY A. J. Rambosek and Gerald Weathers 2STATE Arizona COUNTY Coconino DATE(S) EXAMINED 3/25/53 ------~------DISTRICT Willaha l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Williams, Arizona Grab 0.09 F 8350 % U308 PROPERTY Copper No. 1 and Willaha Group F 8351 Grab 0.09 '7. LOCATION: F 8352 Chip 2.1 1 0.21 % SEC. 35 T. 28 N. R. 1 E. Copper No 1 - 34 28 N. 1 E. F 8353 Chip 2.3' 0.05%Willaha _j. TYPE OF EXAMINATION: Scintillometer and Geiger counter F 8354 Chip 2.7 1 o. 037. 4. DIRECTIONS TO DEPOSIT: Two miles east of Williams on U.S. Highway 66, thence 38 miles north on u.s. Highway 64, thence 38 miles north on U. S. Highway 64, thence 7 miles west on dirt road marked 10 X Cattle Co. to pit on north side of road to claim referred to as Copper No. 1. This is 3/4 mi. east of Willaha Station on Santa Fe railroad. 5. OWNER OR OPERATOR: James Kennedy, Jr. ( K. M. Polson ADDRESS: P. 0. Box F ( and Williams, Arizona ( W. J. McKee 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Old pit dug for copper at Copper No. 1. Kennedy and Associates extended pit to 501 x3 1 x3 1 w/hole in middle 6x6x5 1 deep. Willaha Group - five old copper prospect pits reported to have been worked about 1900. Pits approximately 8x6x4 1 deep. 7. RADIOACTIVITY: B. G. - 0,03 mr/hr Max. - 0.30 mr/hr 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Low, rolling, barren hills. B. Radioactive material occurs through 2 1 zone in and immediately underlying 6" malachite mineralization in Kaibab limestone. Above this 2 1 zone is about 18~ of highly weathered limestone overlain by few inches of soil. The radioactivity drops off rapidly below the 2 1 zone, on the southwest side, but continues to north. Mineralization may be controlled by fractures and undulations. c. CuC03 - CuOx, Caco3 , chert. - 69 - CEB: R-41 PRELIMINARY RECONNAISSANCE REPORT- 1. SAMPLE INFORMATION: 2. STATE Arizona .NUMBER TYPE RADIOACTIVITY COUNTY Coconino 11785 Shovel grab Weak o.o'Cf., U308 DISTRICT Grand Canyon CLAIM/MINE Airport NEAREST TOWNwilliams (28 miles 11786 Chip Weak 0.04~ u o8 3 SEC. T. R.. south) 11787 Channel (18") Weak 0.0~ U308 Mine is 200 yds. east bf Grand Canyon Highway at "Airport." 3· OWNER: Unknown. Property was examined at request of Mr. William Rosman. ADDRESS: Description and ownership could be obtained from County records in Flagstaff, Arizona. 4. PREVIOUS WORK: Property was worked on small scale for copper during World War II. TYPE GEIGER COUNTER --"N"'u'"'c"'l'-!=a_r____ M!i'R ------MODEL ----- BACKGROUND ON ----'-0.;....2;:.;0____ SCALE---- C/M OR DIAL READING OF 0.02 maximum 6. DESCRIPTION OF EXAMINATION: RESULTS: Maximum thickness of 1.5 feet of TYPE OF MAPPING copper mineralization with weak radioactivity. GEOLOGIC RADIOMETRIC The exposure is in a partially caved stulled slope where approximately 500 tons have been DETAIL removed as copper ore. RECONN. X X SURFACE UNDRGRND. 7· MINERALOGIC ASSOCIATION: Copper sulfates with very minor amounts of unidentified radioactive material. 8. GEOLOGIC ENVIRONMENT: Thin sandstone and mudstone units in Kaibab formation. 9· TYPE OF DEPOSIT: Bedded--- sedimentary copper --- (uranium}. 10. GEOLOGIC SKETCH MAP: 11. EXAMINED BY J. w. King 12. DATE(S) AJ2ril 20 2 1;121 13. HAS A PROOF OF OWNERSHIP FORM BEEN DISTRIBUTED 14. SUPPLEMENTARY REPORT TO I FOLLOW --No NOT NECESSARY I - 70- I I FILE A-P-89 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY G. Weathers and G. Meyers 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED 6-3-53 ------DISTRICT Valle 1. SAMPLES --~~------NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN _.:.F.:.l.:.ag~s::.;t::.;a:.:f:;:f______PROPERTY Cedar Ranch Area LOCATION: SEC. 18 T. 25 N. R. 6 E. 3· TYPE OF EXAMINATION: Checked radio activity of area with Halross Scintillo meter Model 939 and El-Tronics Geiger counter 4. DIRECTIONS TO DEPOSIT: Follow U. S. Highway 89 north from Flagstaff for 20 miles, thence northwest 19 miles to the vicinity of Cedar Ranch. The examined outcrops are exposed in the mesa face approximately 1 mile east of the ranch and 1/2 mile south of the ranch. 5 . OWNER OR OPERATOR: ADDRESS: 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: 7. RADIOACTIVITY: Scintillometer: B.G. - 100 cps Max. - same El-Tronics Geiger counter: B.G. - 4 mr/hr 0.2 scale Max. - same 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Mesa with northward facing cliffs, sparse forest. B. Basalt underlain by Shinarump (Triassic), Moenkopi (Triassic) and Kaibab (Permian) formations. c. The Shinarump here is a red conglomerate consisting of alternating lavender, red or gray shales and sandstones containing large rounded pebbles and pockets of jarosite and black shale. - 71 - FILE A-P-89 9. PROOF OF OWNERSHIP RECEIVED: None PERMISSION TO PUBLISH RECEIVED: 10. OTHER INVESTIGATIONS: USGS Prof. Paper 76 "The San Francisco Volcanic Field" by H. H. Robinson 1913 ll. ADDITIONAL INFORMATION: Unknown 12. MAP: Index Map of Arizona showing location of Cedar Ranch area 13. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW --'N;:.:o::..______ - 72 - l FILE _A_-_P_-_4_2--- PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY A. J. Rambosek, Oerald Weathers 2.STATE Arizona COUNTY Coconino DATE ( S ) EXAMINED ---=3=--.=.25"---"5""3 _____ Mining District unknown DISTRICT No· 3 Nayajo Indian Reservation 1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Flagstaff (Black Falls) F 8360 Log 0.31')'. U308 PROPERTY Box Springs No. 2, Bosley No.4, Colorado No. 1 0.41'7. F 8361 Chip - 1.2 LOCATION: Unknown SEC. T. ___ R. F 8362 Chip - 0.6 0.22% 3. TYPE OF EXAMINATION: Grab 0,08% F 8363 Radiometric and geologic 4. DIRECTIONS TO DEPOSIT: Follow U. S. highway No. 89 northeast from Flagstaff for 30 miles, thence east on the Wupatki Monument road (dirt) for 22 miles to the Black Falls Trading Post near the southwest bank of the Little Colorado River. Ford the Little Colorado River at this point and continue eastward for approx. 5 mi. to the vicinity of the mining claims. Travel in this area not recommended without a guide. 5. OWNER OR OPERATOR: Howard Bosley ADDRESS: 312 West Dale Flagstaff, Arizona 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: None 7. RADIOACTIVITY: B. G. 0.03 mr/hr (El-tronics SM-3) Maximum - 0.50 mr/hr (El-tronics SM-3) 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Low, bare, rounded hills and numerous dry washes. B. Radioactivity from lower beds of Chinle formation, Medium- to fine-grained, silty sandstone containing silicified logs and carbonaceous material. Mineralization near base of hills. C. Yellow-orange color observed in radioactive zones- autunite (?) or meta-autunite(~ - 73 - FILE R-R-155 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY E. N. King and S, R. Steinhauset2· STATE _..,A"'r_.i..,_z,.on,a,._ __ COUNTY Coconino DATE (S) EXAMINED _ _,2;..::-"'25"-'-'-"5"'-4 ______DISTRICT___ ~U~n~o~rg~a~n~1~·z~e~d~------l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Kanab, Utah 7.eU308 7.cU308 PROPERTY F-1117 Grab o. 12 0,168 LOCATION: F-lll8 Grab 1.20 1.41 SEC. ? T. 40 N. R. 7 E. 3· TYPE OF EXAMINATION: Surface - scintillometer - Halross Model 939 4. DIRECTIONS TO DEPOSIT: Approximately 3 miles East of Marble Canyon Lodge on left side of Lees Ferry road 5 • OWNER OR OPERATOR: McCary - Beacon Co, ADDRESS: 2155 East 7th Street Los Angeles 23, California 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: History - new prospect Production - none Workings - small prospect pit 7· RADIOACTIVITY: Ave. B.G. 8 cps High 5000 cps 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Shinarump - Moenkopi rim. B. Mineralization occurs in Shinarump channels cut down into the Moenkopi. c. Uranium minerals not identified, copper carbonates and vanadium, - 74- FILE ED-R-1133 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY W. P. Horner and D. F. Olsen 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED January 15, 1953 DISTRICT_____ u_n_o_r~g~a_n_i_z~e_d ______l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Sunrise Trading Post 22101 Selected from 0.1 mr/hr PROPERTY Navajo Indian Reservation high count zone Anomaly No. 3 LOCATION: SEC. ___ T. ___ R. 3. TYPE OF EXAMINATION: Geologic, radiometric 4. DIRECTIONS TO DEPOSIT: See map. Mileage begins at Sunrise Trading Post just north of Leupp, Arizona. 5. OWNER OR OPERATOR: Navajo Indian Reservation ADDRESS: 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Discovered by AEC airborne reconnaissance; anomaly No. 3. 1· RADIOACTIVITY: Area traversed with Halross Model 939 Scintillometer carried at waist level, Background count: 5-10 cps. Average at anomalous areas: 20 cps. Highest count: 45 cps at small isolated spots. Dimensions of anomalous areas: (1) 1/2 mile long along creek, 1/4 mile wide measured at widest point at right angles to long dimension. (2) Roughly circular, 1/4 mile in diameter. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Located at the base of Chinle cliffs 80 to 100 feet high. Numerous small washes cut the area, B. High radioactivity emanates from yellow altered spots near base of the Chinle formation, Ground is littered with chunks of silicified wood. Partially buried silicified logs stand out as lmv mounds, The soil is sandy. The regolith is several feet deep. Sample taken from 45 cps spot. c. Highest radioactivity associated with a 1/4-inch-thick seam of coaly material exposed in one place with pick and shovel. No radioactive minerals visible. - 75 - FILE ED-R-1133 9. PROOF OF OWNERSHIP RECEIVED: No PERMISSION TO PUBLISH RECEIVED: No 10. OTHER INVESTIGATIONS: 11. ADDITIONAL INFORMATION: 12. MAP: L3. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW __N_o ---- - 76- FILE ED-R-1127 PRELIMINARY RECONNAISSANCE REPORT EXAMINEIJ BY W. P. Horner and D. F. Olsen 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED January 21, 1953 ------DISTRICT______u_n_o_r~g_an_i_z_e_d ______l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Cameron, Arizona ------~------PROPERTY Navajo Indian Reservation, 22103 grab weak Anomaly 7 LOCATION: ___ R. SEC. ------T. 3· TYPE OF EXAMINATION: Radiometric and geologic 4. DIRECTIONS TO DEPOSIT: See map. Mileage starts at Black Falls Trading Post in Wupatki National Monument, 5 . OWNER OR OPERATOR: ADDRESS: 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Discovered by AEC airborne reconnaissance; anomaly No. 7 7· RADIOACTIVITY: The area was traversed with a Halross Scintillometer Model 939 held at waist level. Background 10-15 cps. Radioactivity is spotty. High count was 60 cps; average count 30-40 cps in area 240 1 by 330'. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Located in Painted Desert on northeast side of Little Colorado River. Badlands, low, bare, rounded hills; numerous dry washes. B. Radioactivity is from lower beds of the Chinle formation. Medium- to fine- grained impure sandstone, soft, rotten appearance. Highest radioactivity associaed with silicified logs and carbonaceous matter derived from them. Sample number 22103 taken from 60 cps spot. c. No radioactive minerals observed. Halo of bleached, soft sandstone with distinct yellow-orange color surrounds logs. - 77- FILE ED-R-1127 9· PROOF OF OWNERSHIP RECEIVED: PERMISSION TO PUBLISH RECEIVED: 10. OTHER INVESTIGATIONS: ll. ADDITIONAL INFORMATION: . I 12. MAP: 13. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW _N_o____ _ - 78 - I FILE GJEB:R-168 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY J. w. Chester and J. H. Leonard2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED June 26, 1952 DISTRICT Navajo Reservation 1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN ___c~a~m~e~r~o~n~------ PROPERTY --~N~o~c~l~a~i=m~------LOCATION: SEC. 27 T. 28 N. R. ----9 E. 3· TYPE OF EXAMINATION: Surface 4. DIRECTIONS TO DEPOSIT: 5 miles south of Junction of U. S. 89 and Arizona 64 on U. S. 89. Turn east on dirt road and follow for 1 mile. 5. OWNER OR OPERATOR: None--shown by Charles and Evan Huskon, Cameron, Arizona ADDRESS: 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: None 7. RADIOACTIVITY: Nuclear counter--counts .1 to .2 mr/hr. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Flat-breaking to east into Little Colorado River. B. Shinarump conglomerate, There is a suggestion of a paleochannel, but more detailed work would be necessary before positively saying a channel was present. The mineralization occurs 5 to 10 feet above the Shinarump contact. No mineralized material would be found along the contact. The mineralized material would be found along the contact. The mineralized material covers about 10 acres with thickness from a few inches to a foot. Copper minerals widen and in a few places yellow minerals observed. - 79 - FILE GJEB:R-'168 9· PROOF OF OWNERSHIP RECEIVED: No PERMISSION TO PUBLISH RECEIVED: No 10. OTHER INVESTIGATIONS: Two occurrences in same area were visited, 11. ADDITIONAL INFORMATION: Smaller similar occurrences were seen. One in Sec. 28, ~ mile west of this showing, and another ~mile west of U. S. 89 at some place. 12. MAP: ' ' ' D ' ' ' ,,' ' ' ' ' ' ' ~ ' ' ~~."' ... , /_ '' o- l) 13. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW __N:;.o:;_ ____ - 80- FILE ED-R-1134 PRELIMINARY RECONNAISSANCE REPORT EXAMITIED BY W. P. Horner and D. F. Olsen 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED March 5, 1953 DISTRICT______l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN --~C~a~m~e~r~o~n~,_A::;or~i=z~on~a ______ %Vz05 %U30sc %U30se PROPERTY Navajo Indian Reservation 28452 5l;;-ft. channel 0.29 0.07 0.08 LOCATION: 28453 3-ft. chip 0.09 0.01 0.02 SEC. T. ------R. 28454 Selected grab from 1.35 0.26 0.22 "hottest" spot 3. TYPE OF EXAMINATION: Surface, radiometric and geologic 4. DIRECTIONS TO DEPOSIT: See map. Mileage starts at point 20 miles north of Cameron, Arizona, on highway 89. 5. OWNER OR OPERATOR: Navajo Indian Reservation ADDRESS: 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Unclaimed. Discovered by AEC airborne radioactivity survey; anomaly No. 42. 7. RADIOACTIVITY: Area traversed with Scintillator and Halross scintillometer Background Average count High count Hal ross 15 cps 150 cps 500 cps Scintillator .02 mr/hr .20 mr/hr .80 mr/hr 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Mineralized zone outcrops along west side of a small "W"- shaped mesa. Area is accessible by four-wheel-drive vehicle. B. Mineralized zone in a slabby, coarse-grained, crossbedded, well-cemented sandstone layer near the top of the Shinarump formation which is underlain by a layer of clayey mudstone. The zone of high radioactivity (200 cps or greater) is 120 feet long along outcrop and extends 45 feet back into the hill. Samples taken: 1. 5l;;-foot channel taken from most radioactive area. 2. 3-foot chip from 200 cps area, 3. Selected grab from high count area. The mineralized zone is from 2- to 6-foot-thick zone along the 120-foot face. Mineralization is confined to the sandstone layer. C. Radioactivity from a yellow-green platy mineral is disseminated through the sandstone, and concentrated in thin layers along bedding planes in the sand stone. A dark-brown to black submetallic stain is associated with the min eralized rock. - 81 - FILE ED-R-li34 9. PROOF OF OWNERSHIP RECEIVED: No PERMISSION TO PUBLISH RECEIVED: No 10. OTHER INVESTIGATIONS: 11. ADDITIONAL INFORMATION: 12. MAP: 13. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW _:.:,No:.____ _ - 82- I FILE ED-R-1111 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY W. P. Horner and D. F. 0 lsen 2. STATE _ _,A::;r:..:i,_,z:.:o:.:n:.:a:_ __ COUNTY Coconino DATE(S) EXAMINED January 20, 1953 DISTRICT______1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN ----~C:.:a=m~e:.:r:..:o~n:______ 22102 Grab from 150 cps area Moderate PROPERTY Navajo Indian Reservation Anomaly No. 6 LOCATION: SEC. ___ T. ___ R. 3· TYPE OF EXAMINATION: Radiometric, geologic 4. DIRECTIONS TO DEPOSIT: See map below. Anomalous area is located in low hills 2 miles distant and bearing N, 20° W. from spring. Mileage starts at Black Falls Trading Post in Wupat ki National Monument. 5. OWNER OR OPERATOR: Navajo Indian Reservation, anomaly No. 6 ADDRESS: 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: No previous production or history 7· RADIOACTIVITY: Area traversed with Halross Model 939 Scintillometer. Background count 10 to 15 cps. Highest count in area was in space 25 feet by 20 feet (located between two silicified logs). Average count was low, 150 to 200 cps. Isolated spots gave counts of 40 to 50 cps. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Badlands, low, bare hills, adobe soil, numerous dry washes, scattered sage hummocks; accessible by jeep. B. The radioactivity is in beds near the base of the Chinle formation. Mineraliza tion is closely associated with silicified logs and with the carbonaceous matter derived from the logs. Logs which are almost completely buried have higher radioactivity than those which are exposed. The larger logs are 70 to 80 feet long and 2 feet in diameter. Sample 22102 was taken from the "hottest" spot found between two of the silicified logs. The logs are imbedded in a medium- to fine-grained, friable, easily weathered sandstone which contains some clay, C. The sandstone surrounding the logs has been altered to a pale-yellow color. The material appears to be more friable and weathered than that farther away from the logs. No uranium mineralization was observed, - 83 - FILE ED-R-lltl 9· PROOF OF OWNERSHIP RECEIVED: PERMISSION TO PUBLISH RECEIVED: 10. OTHER INVF.STIGATIONS: Discovered by AEC airborne reconnaissance 11. ADDITIONAL INFORMATION: 12. MAP: 13. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW _N:::o::.______ - 84- FILE ED-R-1144 PRELIMINARY RECONNAISSANCE REPORT EXAMI:NED BY W. P. Horner and D. F. Olsen 2. STATE _..;A:::r::..::.iz:o.o.:...nc..a:._ __ COUNTY Coconino DATE(B) EXAMINED February 19, 1953 DISTRICT______c_a_m_e_r_o_n ______1. S1\MPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN __C:.:a:.:m:.:e:.:r:.:o=-n=, ...:A:::r:..ci:.:z:.:o:.:n.::a:_ ___ %U30sc %U30se PROPERTY _.::N.::av~a~jo:_I:.:n:.:d:.:l=-·a:.:n:.:...:R:.:e:.:s:.:e:.:r:..cv:.:a:.:t:.:i:.:o:.:n:_ ___ 22113 Grab 0.08 0,18 22114 Grab 0.01 0,03 LOCATION: SEC. ___ T. ___ R. 3. TYPE OF EXAMINATION: Radiometric and geologic 4. DIRECTIONS TO DEPOSIT: Starting at Cameron, go west on reservoir road. Follow to small plaster house. Anomalous area is on small mesas to north. See map. 5. OWNER OR OPERATOR: Navajo Indian Reservation ADDRESS: Window.Rock, Arizona 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Not previously claimed or worked. Discovered by AEC airborne radioactivity survey. 1· RADIOACTIVITY: Area traversed with Halross Scintillometer Model 939 held at waist level, Background: 15-20 cps. Average count over area - 100 cps. Highest count - 700-800 cps. in two small spots. Radioactivity is generally spotty. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Low mesas, small steep-sided canyons; about 1/2 mile south of Little Colorado River. Area accessible by jeep. B. Deposit is in the Shinarump formation of Triassic age. The host rock is a coarse-grained, crossbedded sandstone layer 2-10 feet thick underlain by variegated shale and mudstone. The highest radioactivity is associated with fossil logs scattered through the sandstone layer. Abnormal radioactivity extends over a rectangular area about 200 x 100 yards. Sample 22113 taken from sandstone beneath fossil log; count of 600-700 cps. Sample 22114 from 350 cps. spot in sandstone. c. No radioactive minerals seen; highest radioactivity around highly iron-stained fossil logs. - 85 - FILE ED-R-1144 9· PROOF OF OWNERSHIP RECEIVED: PERMISSION TO PUBLISH RECEIVED: 10. OTHER INVESTIGATIONS: ll. ADDITIONAL INFORMATION: 12. MAP: -c-"' .... ~ o t r1 e;- )11\ I - I I \\ .;-_ ' t' Pia.<>"'-\ ' 9m'. -- ' r:'('o"'\~t)...LL ..... -~-..::::.::- ;:::.-;...-;:::-"' Mo"'-s 13. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW __N_o _____ - 86 - FILE GJEB:R-164 PRELIMINARY RECONNAISSANCE REPORT EXAMLNED BY J. W. Chester and J. H. Leonara>. STATE Arizona COUNTY Coconino DATE(S) EXAMINED June 26, 1952 DISTRICT Navajo Reservation l. SAMPLES NUMBEB TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Cameron, Arizona 14961. 3 1 channel Moderate PROPERTY not claimed %U3o8e 0.14 %U3o8c 0.15 LOCATION: Lime nil SEC. T. ___ R. v2o5 0.12 3. TYPE OF EXAMINATION: surface 4. DIRECTIONS TO DEPOSIT: One mile east of north end of bridge over Little Colorado River at Cameron 5. OWNER OR OPERATOR: Shown by Charles and Evans Hus kon ADDRESS: Cameron, Arizona 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: None 7. RADIOACTIVITY: Nuclear counter-readings .3 to .4 mr/hr 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Mostly flat with small hills and ridges. B. Bedded deposit in Chinle formation; shows yellow minerals and some carbonaceous material in sandstone. Bed is about 3 feet thick bounded top and bottom by a limonite-stained sandstone. Poorly cemented near top of small ridge--200 feet in length and average width 30 feet, Overburden 0 to 6 feet. Continues into small hills. Overburden up to 60 feet thick. - 87- FILE GJEB:R-164 9· PROOF OF 0\m:ERSHIP RECEIVED: No PERMISSION TO PUBLISH RECEIVED: No 10. OTHER INVESTIGATIONS: 11. ADDITIONAL INFORMATION: 12. MAP: o'b fl 13. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW _ __:N:.:.;o:.._ ____ - 88- FILE ED-R-1149 PRELIMINARY RECONNAISSANCE REPORT EXAML]ED BY W. P. Horner and D. F. Olsen 2. STATE Arizona COUNTY Coconino DATE ( S) EXAMINED --:::.!2/--"l"-9:...:/ 5:..::3 ____ _ DISTRICT______1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN --~C~am~er~o~n~,~A~r~i~z~o~n~a~------ 22115 Grab from 800 count spot PROPERTY Navajo Indian Reservation 22116 Four-foot channel from 350 count spot LOCATION: SEC. ____ T. ___ R. 3· TYPE OF EXAMINATION: Surface, geologic and radiometric 4. DIRECTIONS TO DEPOSIT: See map 5· OWNER OR OPERATOR: Navajo Indian Reservation ADDRESS: Window Rock, Arizona 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: No previously claimed or worked. Discovered by airborne reconnaissance methods. Anomaly No. 27. 7• RADIOACTIVITY: Area traversed with Halross Model 939 Scintillometer held at waist level. Background: 20 cps. Average count: 80-100 cps. Few isolated spots count 300-400· cps. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Area of abnormal radioactivity is on a low mesa accessible by jeep. B. Deposit is in the Shinarump formation of Triassic age. The host rock is a coarse-grained, crossbedded sandstone layer 2 to 5 feet thick underlain by variegated shale and mudstone. The highest radioactivity is associated with fossil logs scattered through the sandstone layer. Area of radioactivity SO x 30 yards. C. Uranophane? seen as an encrustation on sandstone plates in 800 cps. area; only location where observed; fossil wood fragments associated with radioactivity. - 89 - Fn.E ED-R-1149 9. PROOF OF OWNERSHIP RECEIVED: PERMISSION TO PUBLISH RECEIVED: 10. OTHER INVESTIGATIONS: 11. ADDITIONAL INFORMATION: 12. MAP: 13. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW __N_o _____ FILE _..;;A:....-=..P -_4:..:0'---- PRELIMINARY RECONNAISSANCE REPORT EXAMrNED BY R. D. Miller and Gerald Weatherg. STATE Arizona COUNTY Coconino DATE(S) EXAMINED April 8, 1953 DISTRICT__ ~F~r~a~n~c~i~s'------l. S.AMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN --~W~i~l~l~i~am~s~------ PROPERTY ----~B~l~u~e~B~o~n~n=e~t ______ LOCATION: SEC. 8(?) T. 28 N. R. 2 E. 3· TYPE OF EXAMINATION: Geologic with El-Tronic Geiger counter 4. DIRECTIONS TO DEPOSIT: Proceed south of Anita Station (A.T.&S.F.R.R.) 5.6 miles on dirt road, thence 3.1 mile northeast to top of knoll. 5 . OWNER OR OPERATOR: Hazel F. Lockridge ADDRESS: Williams, Arizona 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Production unknown. Development consists of 12 shallow pits to maximum depth of 8 feet. 7· RADIOACTIVITY: 0.2 scale, BG 2, Maximum 4 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Rounded hills with limestone outcrops; gentle relief. B. Copper deposits near surface of Permian Kaibab limestone. Fractured and gently folded rocks with copper apparently localized near crests of undulations. C. Chalcopyrite, bornite, covellite (?), tenorite (?), cuprite (?), malachite, azurite, chrysocolla, pyrite, hematite and limonite. Radioactive minerals not discernible. - 91- FILE GJEB :R-167 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY J. w. Chester and J. H. Leonard2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED------DISTRICT Navajo Reservation 1. SAMPLES "------NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Cameron, Arizona PROPERTY --~N~o~c~l~a~im=------LOCATION: SEC. ___ T. R. 3. TYPE OF EXAMINATION: Surface 4. DIRECTIONS TO DEPOSIT: At north end of bridge at Cameron turn east on wagon road; 17 miles east on road to unmarked deposit. 5. OWNER OR OPERATOR: Chee Paddock ADDRESS: Cameron, Arizona 6. MINE OR PROPERTY HISTORY, PROIJUCTION AND WORKINGS: None 7. RADIOACTIVITY: Nuclear counter--individual logs give counts to l mr/hr. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Deposit located on slope of a Chinle bluff. B. Mineralized fossil trees in Chinle formation; trees are well silicified. Mineralization confined to outer part of trees mostly. Trees are distributed over 500 yards of rim. - 92- FILE GJEB:R-167 9. FROOF OF OWNERSHIP RECEIVED: No FERMISSION TU PUBLISH RECEIVED: No 10. OTHER INVESTIGATIONS: ll. ADDITIONAL INFORMATION: 12. MAP: 13. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW --'N"'o"------ - 93 - PRELIMINARY RECONNAISSANCE REPORT-RG-36 1. SAMPLE INFORMATION: 2. STATEi;r---'A:r~i::z:-;:o::;n,a=:::------NUMBER TYPE RADIOACTIVITY COUNTY_~--C~o~c~o=n=i=o~o ______DISTRICT Warm Springs. Several CLAIM/MINE prospects and mines NEAREST TOWN KaJ<"h utah SEC. T. 31:l N; R. 2 E. Seer .11, 12, 13, 14. T 38 N., R. 1 E. 3. OWNER: Several: ADDRESS:Mackin Group and Petoskey Group of claims 4. PREVIOUS WORK: s. F. Emmons, Copper in the Red Beds of the Colorado Plateau: USGS Bull. 260 p. 221-232~ 1905 5. TYPE GEIGER COUNTER ___.f"'j""e"'a.,.d ____ MFR ---"N...,rc..,c~--- MODEL 261 OA BACKGROUND ON _ __;,0-'-".2:;.._ ___ SCALE----- C/M OR DIAL READING OF .01 to .02 6. DESCRIPTION OF EXAMINATION: RESULTS: Negative TYPE OF MAPPING GEOLOGIC RADIOMETRIC DETAIL RECONN. X X SURFACE X X UNDRGRND. X x --- a short adit 1· MINERALOGIC ASSOCIATION: Malachite, azurite, chrysocolla ?, limonite, manganese oxide, chert. 8. GEOLOGIC ENVIRONMENT: Kaibab limestone (Permian) White to gray cherty and silicified limestone that weathers reddish brown in places. 9. TYPE OF DEPOSIT: Copper minerals, chiefly carbonates, replacing chert and to a less extent limestone; veinlets of copper minerals along fault zones and zones of fracturing. 10. GEOLOGIC SKETCH MAP: 11. EXAMINED BY Russell G1bson 12. DATE(S) --.;;t9,t..:.l44,f.;>.5J..l---- 13. HAS A PROOF OF OWNERSHIP FORM BEEN DISTRIBUTED ...... llNI.!Jn ____ 14. SUPPLEMENTARY REPORT TO FOLLOW NOT NECESSARY x - 94- FILE A-P-88 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY G. Heathers, G. Meyers 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED 6-3-'53 --~~~------DISTRICT____ ~V_a_ll_e ______1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN --~H~i~l~l~i~a=m=s ______ PROPERTY --~S~q~u=a=w~M=o=un=t=a=i=n~A=r~e=a~------LOCATION: SEC. --=3~1 ___ T. 24 N. R. 4 E. 3· TYPE OF EXAMINATION: Radiometric 4. DIRECTIONS TO DEPOSIT: Follow U. s. Highway 66 14 miles east of Hilliams, thence 13 miles north on Tusayan National Forest Road to Squaw Mountain. 5 . OHNER OR OPERATOR: ADDRESS: 6. MINE OR PROPERTY HISTORY, PRODUCTION AND HORKINGS: 7. RADIOACTIVITY: Scintillometer: B.G. 70 cps Max. - Same El-Tronics Geiger Counter: 4 mr/hr - 0.2 scale Max. - Same 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Steep twin peaked mountain, forested. B. Flanks of mountain covered by basalt which form the peaks. Saddle between peaks is an eroded anticline of Kaibab limestone (Permian). - 95 - FILE A-P-88 9· PROOF OF OWNERSHIP RECEIVED: None PERMISSION TO PUBLISH RECEIVED: 10. OTHER INVESTIGATIONS: Unknown ll. ADDITIONAL INFORMATION: Unknown 12. MAP: Index Map of Arizona showing location of Squaw Mountain area SCALE: 0 '------' 150 Miles 13. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW _..:N.:<.o _____ - 96 - FILE GJEB:R-163 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY J. W. Chester and J. H. Leonard 2. STATE ____8A~r~i~z~o~n~a ____ COUNTY Coconino DATE( S) EXAMINED June 26 1952 DISTRICT____ ~N~a~v~a~j~o~R=e~s=e~rv~a~t~io~n~------1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Cameron, Arizona PROPERTY ~N~o~n~a~m~e ______ LOCATION: SEC. ____ T. ____ R. 3. TYPE OF EXAMINATION: Surface 4. DIRECTIONS TO DEPOSIT: 4.2 miles west on Arizona highway 64 from Junction with U. S. 89. Turn north and east from highway and travel about one mile to old mine. 5. OWNER OR OPERATOR: Shown by Charles and Evans Huskon of Cameron ADDRESS: No claims 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Old mine, probably worked before 1900. Workings consist of adit about 50 feet in length, Copper prospect. 7. RADIOACTIVITY: Nuclear counter. Two seams show counts of .2 mr/hr above and below rock counts up to .2 mr/hr. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Dips gently to east and is cut by washes. B. Shinarump-filled paleochannel. Two seams 2 to 6 inches thick carry carbonaceous trash, copper and uranium minerals. Mineralization appears to extend into the sandstones and conglomerate above and below the seams but is much weaker. The sandstone at the base of the channel shows some copper minerals and weak count. - 97- FILE GJEB:R-163 9. PROOF OF OWNERSHIP RECEIVED: No PERMISSION TO PUBLISH RECEIVED: No 10. OTHER INVESTIGATIONS: 11. ADDITIONAL INFORMATION: 12. MAP: \ n1 i. 13. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW _.:.:.No"------ - 98- J FILE ED-R-1147 PRELIMINARY RECONNAISSANCE REPORT EXAMITIED BY W, P, Horner and D• F. 01 sen 2 • STATE Arizona COUNTY Coconino DATE ( .S) EXAMINED -~2..,1..£,2"'6"""15.,..3,______DISTRICT.__ ~C~a~m~e~r~o~n~------1. SJ\MPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN ___,C:.:a::;m:.:e:.=rc::o~n,_,,~Ac:;r_:ic:;:z.::o.::n::::ac______%v2o %u o c %U o e 5 3 8 3 8 PROPERTY Navajo Indian Reservation 22121. Grab 0.02 0.02 0.02 LOCATION: 22122 Grab o. 02 0.01 Trace SEC. ___ T. ___ R. 3. TYPE OF EXAMINATION: Radiometric, geologic 4. DJRECTIONS TO DEPOSIT: See map. Mileage starts at Tuba City Junction. 5. OWNER OR OPERATOR: Navajo Indian Reservation ADDRESS: 6. MJNE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Not claimed. Discovered by airborne methods; anomaly No. 38. 7. RADIOACTIVITY: Area traversed with the Halross Scintillometer and the Scintillator Background Average High count Hal ross Scintillometer 15 cps 60 cps 180 cps Precision Scintillator • 02 mr /hr • 05 mr /hr .15 mr/hr 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Radioactivity along edge of low, flat-topped benches. Area accessible by jeep. B. Radioactivity associated with fossil logs buried in a 5-10-foot-thick bed of brittle, well-cemented, coarse-grained, platy sandstone conglomerate in the Shinarump formation. This layer is underlain by a 10-15-foot-thick layer of variegated mudstone, c. Logs are silicified, surrounded by halo of brown iron stain. Copper stain seen on one log. No radioactive mineral seen. Samples were taken from fossil logs. - 99 - FILE ED-R-1147 9. PROOF OF OWNERSHIP RECEIVED: PERMISSION TO PUBLISH RECEIVED: 10. OTHER INVESTIGATIONS: 11. ADDITIONAl INFORMATION: 12. MAP: 13. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW _..:.:N.;:.o _____ I - 100 - FILE ED-R-1148 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY W. P. Horner and D. F. Olsen 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED 2/20/53 ----~~------DISTRICT.____ ~C~a~m~e~r~on~------l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN __...:C:::a:::m,e:::r,_,o,_,n,_,,.._,_A~r,'-'i"'z:.::o::;n:.::a:______ PROPERTY Navajo Indian Reservation 22117 Grab 0.15 0.06 0.10 LOCATION: 22118 Grab 0.13 0.06 0.06 SEC. T. ------R. 3. TYPE OF EXAMINATION: Radiometric, geologic 4. DIRECTIONS TO DEPOSIT: See map. Airport, red butte and anomaly are in straight line. 5 . OWNER OR OPERATOR: Navajo Indian Reservation ADDRESS: Window Rock, Arizona 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Not previously claimed or ••orked. Discovered by airborne reconnaissance methods; anomaly No. 28. 7· RADIOACTIVITY: Area traversed with Halross Model 939 Scintillometer held at waist level. Background: 20 cps. Average count: 70 cps. High count: 800-1000 at one spot, 400 cps at another. The radioactivity is rather spotty, no definite pattern. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Rocky flat accessible by jeep. B. Radioactive zone located in the Shinarump formation of Triassic age. The zone of radioactivity appears to be less than 1" thick. Radioactivity is associated with scattered exposures of a slabby (flaggy) coarse-grained sandstone containing fossil wood fragments. The radioactivity lies within two separate areas, one of which is 100 yards long and 50 yards wide. (No. 22118) The other area is 25 yards long and 15 yards wide. (No. 22117) C. A light-green radioactive mineral was observed in scattered spots. Carbonaceous matter and silicified wood also associated with high radioactivity. - 101- FILE ED-R-1148 9. PROOF OF OWNERSHIP RECEIVED: PERMISSION TO PUBLISH RECEIVED: 10. OTHER INVESTIGATIONS: 11. ADDITIONAL INFORMATION: 12. MAP: I. 5 ""'. L3. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW _ __:.:N~o ____ - 102- I FILE R-R-306* (Salt Lake Dist.) PRELIMINARY RECONNAISSANCE REPORT EXAMITIED BY Harlen Holen 2 • STATE _ _:cA::r..:i:::zc::o..:;n;::a;__ __ COUNTY Coconino DATE (B) EXAMINED --'-'7/'-'1"'2"-/"-'55"------DISTRICT Unorganized l. SJ\MPLES NUMBEE TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Houserock Ranch PROPERTY Several Hundred Claims LOCATION: 39 N. 4 E. SEC. T. 38 N. R. 5 E. 38 N. 4 E. 3. TYPE OF EXAMINATION: Surface 4. D~RECTIONS TO DEPOSIT: Claims are located on the north side of U. S. 89 between Houserock Ranch and Cliff Dwellers Lodge. 5. OWNER OR OPERATOR: Arco Uranium, Inc. ADDRESS: Denver, Colorado 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: The claims are now being drilled; 89 holes totaling about 9000 feet have been drilled to date. 7· RADIOACTIVITY: Very minor radioactivity reported at various places in the Petrified Forest member of the Chinle formation. No radioactivity reported in the drill holes. Most holes drilled through the Moenkopi-Shinarump contact. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Intricate system of dry washes forming low knolls and mounds at the base of the Vermillion Cliffs. B. Most of the holes are collared near the base of the Chinle format ion and drilled to the Shinarump-Moenkopi contact. The Shinarump does not crop out in the area being drilled. C. All holes were drilled with a plug bit. No minerals were identified in the cuttings which were examined from a few of the holes. - 103 - FILE A-P-90 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY G. Weathers and G. Meyers 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED __6::..--=2'--:::.:53=------DISTRICT____ ~V~a~ll~e~------l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN --~W~i~l~l~i~a~m~s ______ PROPERTY --~R~e~d~B~u~t~t~e~A~r~e~a~------LOCATION: SEC. 8 T. 28 N. R. 3 E. 3. TYPE OF EXAMINATION: Checked radio activity of butte with Halross Scintillo , I meter, Model 939 and El-Tronics Geiger Counter 4. DIRECTIONS TO DEPOSIT: Follow State Highway 64 for 40 miles north of Williams, thence 2-l/2 miles east on Tusayan Forest Road to Red Butte. I J • OWNER OR OPERATOR: ADDRESS: 5. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: 7· RADIOACTIVITY: Scintillometer: B.G. - 100 cps Max. - same El-Tronics Geiger counter: B.G. -6 mr/hr 0.2 scale Max. - same 3. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Steep butte, lightly forested. B. Butte capped by basalt, underlain by a few feet of Shinarump Triassic sandstone followed by a thick section of Moenkopi shales and sandstones. Base of butte is underlain by Kaibab (Permian) limestone. 104 - I FILE A-P-87 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY R. D. Miller 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED ---'6'----'4--5"'3'------DISTRICT.__ ~U~n~o~r~g~a~n~iz~e~d~------1. SANPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN __.::A:=s~h~fo::.;r:.:k"------ PROPERTY --~V~a~r~i~o~u;s ______ LOCATION: SEC. --- T. 23 N. R. 2- 3 W. 3· TYPE OF EXAMINATION: Rapid reconnaissance of flagstone quarries and outcrops with Halross Scintillometer 4. DI~ECTIONS TO DEPOSIT: Take road north from Ashfork, crossing Santa Fe Railroad tracks, for about ll miles to first of numerous flagstone quarries with connecting roads. 5 . OWNER OR OPERATOR: ADDRESS: Various 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Extensive shallow quarries 7. RADIOACTIVITY: None 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Rolling hills with thick juniper. B. Coconino sandstone cross stratified at steep angles; basalt capping on adjacent hills. C. Red to white sandstone quarried for flagstone. - lOS - FILE R-R-301 (Salt Lake Dist. PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY Harlen Holen 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED _ _,6"-/-"'13"-1./-""'5""-5------DISTRICT__ ~U~n~o~rg~a~n~i~z~e~d~------1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Houserock Ranch PROPERTY Maddox and Hamblin Ranch LOCATION: SEC. -"-5 __ T. 40 N. R. _4..:.....:E:.,:. __ 3. TYPE OF EXAMINATION: Surface 4. DIRECTIONS TO DEPOSIT: Take dirt road north from Houserock Ranch for 9 miles; turn right and go about 6 miles to ranch. 5 . OWNER OR OPERATOR: L. Maddox ADDRESS: Kanab, Utah 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: 7. RADIOACTIVITY: None 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): Two water wells were probed in the vicinity of the ranch building. Hole depths were 201 and 712'. Both holes are collared in the Navajo Formation and the deepest one may have reached the upper Chinle Formation. No radioactivity. - lo6- FILE 1 PRELIMINARY RECONNAISSANCE REPORT EXAMII'IED BY H. Holen and L. T PROPERTY England Group, 20 claims LOCATION: SEC • .....:::.3.:...? __ T. 40 N. R. 7 E. 3· TYPE OF EXAMINATION: Surface examination of outcrops 4. D~RECTIONS TO DEPOSIT: Follow Lee's Ferry road from Marble Canyon Lodge to Paria river road. Follow Paria river road for+ 5 miles to Marble Canyon Mining Company's mine (Red Wing Claims). Take road that goes past the mine and up to the top of the rim. 5 . OWNER OR OPERATOR: Bishop Oil Company (J. D. Herman is manager) ADDRESS: San Francisco, California 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Operators are presently bulldozing a network of drill access roads. It is understood they will spend $50,000 on a drilling program. 7. RADIOACTIVITY: None noted on the claims involved in the drilling program. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Gullied rim at base of Glen Canyon cliffs. B. Petrified Forest member of the Chinle formation underlain by the Shinarump formation. Holes will be collared in the Chinle and drilled through the Shinarump-Moenkopi contact. Considerable slumping in the area. Some channeling noted where the Shinarump crops out on the rim. C. Radioactivity associated with Cu carbonates and carbonaceous trash at the Shinarump-Moenkopi contact. No uranium minerals identified. - 107- FILE A-P-110 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY G. Weathers 2. STATE Arizona C0UNTY Coconino DATE ( S) EXAMINED ---"6"-'-2..,3:..;;-""53"------DISTRICT Grandview 1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN --~C~am~e~r~o~n~------PROPERTY Cedar Mountain and vicinity LOCATION: SEC. 20,21 T. 31 N. R. 6 E. I TYPE OF EXAMINATION: Radiometric ,I I 4. DIRECTIONS TO DEPOSIT: Follow U. S. Highway 64 for 0.2 miles east of Grand Canyon National Park boundary, thence north on dirt road into canyon and to the base of Cedar Mountain. 5 . OWNER OR OPERATOR: None ADDRESS: 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: None 7• RADIOACTIVITY: Halross Scintillometer: B.G. 150 cps Max. 150 cps. El Tronics Geiger counter: B.G. 0.15 mr/hr Max. 0.15 mr/hr 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Mesa capped with growth of cedars. B. Erosional remnant of Triassic, Moenkopi conglomerate. C. FeOx stain in cementing material of the conglomerate. - 108- PRELIMINARY RECONNAISSANCE REPORT-RG- 35- 51 l. SAME'LE INFORMATION: 2. STATE Arizona NUMBER TYPE RADIOACTIVITY COUNTY Coconino DISTRICT White Me sa CLAIM/MINE 2 groups of claims * NEAREST TOWN 112 mi , northwest SEC. of Flagstaff, Arizona *Nos. l and 2 l) c. F. Thompson, E. G. Archer, K. E. Anderson - Cameron, Arizona 3· OWNER: ADDEESS:2) Shattuck Denn Mining Corp., Bisbee, Arizona 4. FREVIOUS WORK: C. B. Read; R. D. Sample; H. H. Sullvold, Jr.; Copper deposits of the ~ite Mesa district, Coconino County, Arizona, 1943 - USGS Open File. J. M. Hill - Copper deposits of the White Mesa district, Arizona, USGS Bull. 540-1914 (p. 159-163). s. F. Emmons. Copper in the Red Beds of the Colorado Plateau region~USGS Bull. 260, 5. TYPE GEIGER COUNTER field cmmter MFR NICG MvDEL26lOA[l905 . • BACKGROUND ON _ __..~...t:.. ____ SCALE----- C/M OR DIAL READING OF .01 to .03 6. DESCRIPTION OF EXAMINATION: RESULTS: A very few faces showed readings TYPE OF MAPPING of .05 to .06 and one very small GEOLOGIC RADIOMETRIC occurrence .30 mr/hr. All other faces of ore and dumps were negative DETAIL or practically so. RECONN. X X SURFACE X X UNDRGRND. 7. MINERALOGIC ASSOCIATION: Malachite, chrysocolla, limonite, chalcocite. 8. GEOLOGIC ENVIRONMENT: Navajo sandstone (Jurassic?), white to gray, crossbedded. 9. TYPE OF DEPOSIT: Copper minerals disseminated through sandstone and concentrated in pods and along joints, fissures and bedding planes of sandstone. 10. GEOLOGIC SKETCH MAP: 11. EXAMINED BY Bussell Gibson 12. DATE(S) ;8/27 and 9/5/51 ' 13. HAS A PROOF OF OWNERSHIP FORM BEEN DISTRIBUTED ND . 14. SUPPLEMENTARY REPORT TO FOLLOW NOT NECESSARY x - 109 - U. S.. DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY TRACE ELEMENTS PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY Harr:c C. Granger USGS - PRR NO. DATE EXAMIN""ED:::----T:4"i/2:::;'Y_"""'571.:_::=="'--- DATE 4/27/51 STATE Arizona 1. NAME OF PROPERTY: Orphan Claim COUNTY Coconino DISTRICT Grand Canyon 2. DIRECTIONS TO PROPERTY: Directly below SEC. 14 T. 31 N. R. 2 E. Maricopa Point in the Grand Canyon National Park 3· OWNER OR LESSEE: Madeline Jacobs ADDRESS: Prescott, Arizona 4. PUBLISHED REFERENCES: 5 • MINE WORKINGS: Tunnel No. 1 : 20 ft. long Tunnel No. 2 : 8o ft. long 6, TYPE OF EXAMINATION: Radiometric reconnaissance, sketch mapping, sampling 7. RADIOACTIVE DEPOSIT: TYPE AND AGE: Mineralized slump block of Coconino WALL ROCKS: sandstone (Permian) Coconino sandstone ORE MINERALS, PRIMARY: (adjacent to U deposit - Pyrite, arsenopyrite (7) marcasite (?) ORE MINERALS, SECONDARY: Torbernite (adjacent to uranium deposit - chrysocolla) GANGUE MINERALS: Fe oxides ORE-GANGUE RELATIONSHIP: Uranium adsorbed (7) in Fe oxides7 ATTITUDES: N. 250 w. and nearly vertical SHAPE: Shear zone LENGTH (STRIKE WIDTH: > 5 ft. max. THICKNESS: OR OTHER): >25 feet 8. COUNTER TYPE: Nuclear AVERAGE READING FOR DEPOSIT: BACKGROUND READING: o-4 divs. on 0.2 scale Highest counts too great to measure 9· SAMPLE INFORMATION: TYPE AND MATERIAL %EU OR U308 CHEM. ASSAY SAMPLE NO. SAMPLED OR CJ/M (PERCENT) LOCATION HG-50-51 chip-channel .56 Shear zone HG-51-51 chip-channel 1.0 Shear zone HG-52-51 chip-channel 0.21 Shear zone HG-53-51 chip o.ooB Tunnel No. 2 HG-54-51 chip o.o64 Tunnel No. 1 HG-55-51 grab 12.5 Shear zone "high grade" O. SUPPLEMENTAL REPORT TO FOLLOW: Yes - 110- FILE A-P-52 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY R. D, Miller, Gerald Weathers 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED April 7, 1953 DISTRICT Grand Canyon District 1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Williams, Arizona '7.eU308 %cU303 F-8253 Chip around walls and PROPERTY Orphan Lode Claim back of 4' x 6 1 ad it 0.07 F-8254 Same as F-8253 0.01 LOCATION: F-8255 Chip 12.5 feet 0,94 0.608 SEC. 14 T. 31 N. R. 2 E. F-8256 Chip - 5.0 " 0.41 0.131 F-825 7 Chip - 6,0 " 0.08 3. TYPE OF EXAMINATION: F-8258 Chip - 7.0 " 3.00 0.054 Geologic with aid of Halross Scintillometer Model 939 A 4. DIRECTIONS TO DEPOSIT: Directly below Maricopa Point on west rim of Grand Canyon. Can be reached by Bright Angel Trail to near base of Coconino sandstone, thence by foot on crude trail along base at Coconino sandstone to the west about 2\ miles. 5 . OWNER OR OPERATOR: Mrs. Madeline Jacobs ADDRESS: Burnt Ranch Prescott, Arizona 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Located and patented prior to establishment of Grand Canyon National Park. Reported to have shipped copper ore. 1 1 Production unknown. Development consists of 20-ft. adit (6 x 4 ) and 77-ft. adit 1 1 1 1 (6 x 4 ). Longer adit is about 125 N. 280W. of short adit and about 120 lower in elevation. 7. RADIOACTIVITY: B. G. 20 cps. Max. reading 1800 cps. at shear zone 25' from lower adit. 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Sloping cliff in re-entrant of South Rim of Grand Canyon. B. Deposit is in highly fractured slump block of Permian Coconino sandstone about 500ft. in width. Overlying Kaibab limestone block offset at top of rim about 40 feet. Contact between Coconino sandstone and Hermit shale obscured by talus. Top of underlying Supai formation observed to be downwarped at least 20 feet. c. Strongly radioactive minerals are associated with limonite. Sparse torbernite (?) occurs along fracture planes. Abundant pyrite fills fractures. Copper sulfides are not visible. Secondary copper minerals include malachite, chalconthite and chrysocolla. -111- FILE A-P-52 (SupPl) SUPPLEMENT TO PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY ·==~=:.--'R"-'...... _.,D:;,· -:.Mi'-'1'-"l""l"'er....._ __ SUPPLEMENT NO. l DATE(S) OF EXAMINATION l/8/54 DATE OF THIS REPORT ~.?JiJj'j_4_-=~~= DATE OF PREVIOUS REPORT _4:.t./..J.7,_,/5<-.3<--- l. SAMPLE DATA 2. STATE Arizona COUNTY Coconino ..:::.;:AS~S:-:-A~Y-,'J)r:U,- 3""08;:-----.....,0THE=""R~E""L"'E"'ME""NT=s NUMBER RADIOMETRIC CHEMICAL CHEMICAL DISTRICT Grand Canyon 100851 0.01 0.01 Southeast shear near sp;r-ing 100852 0.12 0.03 Adit #l (20' adit) ~EAREST TOWN Williams, Arizona 100853 2.00 3·31 Minor shear to southwest 100854 0.06 0.02 Major shear to southweJglOPERTY _...;O::.:rp:.=h::a:.::n:....::L:.::0.::d=.e_C::.:l~a::.:i:.;m=-- Width 100801 6.0 0.57 LOCATION: 100803 9.0 0.10 ) SEC.~ T. 31 N.R. 2 E. 100805 5.0 0.46 )Channel samples 100806 8.0 o. 38 )from main shear zone 100807 6.0 0.26 ) 100823 3.0 0.16 Shear on cliff to southwest 3. OWNER Oli OPJ!:RATOR: ADDRESS: OWner - Mrs. Madeline Jacobs, Burnt Ranch, Prescott, Arizona Operator - Golden Crown Mining Company, New York, New York Geologist - Arthur Still, Prescott, Arizona 4. ADDITIONAL INFORMATION ON MINERALOGY, RADIOACTIVI'l'Y, GEOLOGY, MINING, ETC. : Golden Crown Mining Company has option on property. Athur Still, mining geolo gist for company, has mapped property with Brunton and tape in addition to extensive sampling. Operators are now investigating feasibility of tramway on property. Mr. Still reports that he has recommended start of actual mining operations (after tram way construction) with shaft sunk on main mineralized shear and drift along mineral ized zone. By following ore in exploration, shipments could be made from start of work. Main ore zone is along vertical shears striking N. 25° to N. 30° w. near portal of old workings (Adit #2) and perpendicular thereto. Interior of adit is almost barren. Samples 801, 803, 805, 806 and 807 were cut by Mr. Still at about lO'inter vals along ore zone, Sample 823 is taken from small radioactive zone along major shear forming western boundary of slump block. Remainder of Golden Crown samples are not shown but were below O.lOf.cU308 and showed inequilibrium with radiometric results. Chemical assays were made by Brown Laboratories, Grand Junction, Colorado. AEC Sample Nos. 100851-854 were taken in place, not sampled by Mr. Still. Sample 100853 repre sents narrow vertical shear zone near southwest corner of slump block; radioactivity (torbernite) is confined to about 15' length by transverse shears. 5· TO BE FOLLOWED BY: ADDITIONAL SUPPLEMENTARY REPORT Yes MEMORANDUM REPORT __BOUND REPORT ___ - 112- FILE R-R-276 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY C. L. Twitchell and H. Holen 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED 1-11-55 ------DISTRICT.____ ~u~n~or~g~a=n=i=z=e=d~------1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN Houserock Ranch PROPERTY ____G_a_z_e_l_le __ N_o_. __ l______ LOCATION: SEC. --- T. 37 N. R. 4 E. 3. TYPE OF EXAMINATION: Surface radiometric and drill-hole probing 4. DIRECTIONS TO DEPOSIT: From Highway 89 at Houserock Ranch take dirt road northeast one and one-half miles. Claim lies near the dry creek bed that comes down Houserock valley. 5 . OWNER OR OPERATOR: C. E. Kenyon and Obert Eggerer, trustees ADDRESS: Los Angeles, California 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Property now being drilled, no other workings 7. RADIOACTIVITY: None 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Alluvial plain is three miles wide, Houserock Valley on the east flank of the Kaibab uplift. B. The Kaibab formation is exposed on the west side of the valley, and the Chinle formation and Glenn Canyon series on the east side. Small outcrops of Shinarump near the center of the valley. Target of the drilling is the Shinarump formation. C. No mineralization noted. - 113- FILE R-R-27'6 9. PROOF OF OWNERSHIP RECEIVED: No PERMISSION TO PUBLISH RECEIVED: 10. OTHER INVESTIGATIONS: ll. ADDITIONAL INFORMATION: 12. MAP: t: &,<>- c:H \'u..."'\'\e..... c...\~~<;:; ~ ~ t flros~ec.--'r - Pl~?--ro\G. sco.-le y"' ,, ::. I '(VI\\~ 13. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW ___Y_es ___ _ - 114 - FILE R-Rs-276 SUPPLEMENT TO PRELIMINARY RECONNAISSANCE REPORT H. K. Holen EXAM~NED BY L. C. Twitchell SUPPLEMENT NO. l -~ •-·--·T··-• ·--·--- DATE (S) OF EXAMINATION 1-20-'5)~ DATE OF THIS REPORT l-2Q~22._ ____ DATE OF PREVIOUS REPORT l-ll-55 l. SAMPLE DATA 2. STATE ~izona COUN~Y goconino ASSAY j/)U308 OTHER ELEMENTS NUMBER RADIOMETRIC CHEMICAL CHEMICAL DISTRICT ------NEAREST TOWN House Rock Ranch PROPERTY Gazelle No. l LOCATION: SEC. _ T. 37 N. R. 4 E. 3. OWNER OR OPERATOR: C. E. Kenyon and Obert Eggerer, Trustees ADDREUS: Los Angeles, California 4. ADDITIONAL INFORMATION ON MINERALOGY, RADIOACTIVI1Y, GEOLOGY, MINING, ETC.: According to the operators, sixteen holes were drilled, but none cut the Shinarump formation which was the target of drilling. The first hole was probed by the AEC. There was no radioactivity. The remainder of the holes were not probed because they caved immediately after drilling. 5 . TO BE FOLLOWED BY: ADDITIONAL SUPPLEMENTARY REPORT ___ MEMORANDUM REPORT BOUND REPORT ___ - 115 - FILE R-R-275 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY H. Holen and L. C. Twitchell 2. STATE Arizona COUNTY Coconino DATE ( S) EXAMINED _ __,_l;;..-1"'4c::-""55..______DISTRICT Unorganized 1. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEARRST TCWN Cliff Dwellers' Lodge F-1338 Select %eU308 - 0.1405 Black carbonaceous material in conglomerate PROPERTY --~J~a~s~p~e~r~G~r~o~u~p______ F-1339 Select %eU30s - 0.1583 LOCATION: Much copper carbonates around pebbles in SEC. 28 T. 29 N. R. 6 E. Shinarump 3. TYPE OF EXAMINATION: Radiometric, Scintillator Model 111 4. DIRECTIONS TO DEPOSIT: One-half mile east of Cliff Dwellers' Lodge, just north of Highway 89 5. OWNER OR OPERATOR: LaSalle Mining Company ADDRESS: 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: Few rounds blasted from cliff face. 7. RADIOACTIVITY: B. G. - 0,017 mr/hr High - 3.00 mr/hr 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Steep cliff face below Shinarump rim. B. Thick (+20 feet) conglomerate lens in the Shinarump formation--probably a channel. c. Yellow uranium mineral associated with copper carbonates; also some soft, black carbonaceous material. Some chunks of conglomerate had considerable malachite and azurite. - 116 - I PRELIMINARY RECONNAISSANCE REPORT-RG- 33 1. SJ\MPLE INFORMATION: 2. STATE Arizona NUMBElR TYPE RADIOACTIVITY COUNTY Coconino DISTRICT Grand Canyon F-6315 channel weak CLAIM/MINE Grand View Mine F-6316 grab moderate NEAREST TOWN Grand Canyon F-6317 channel moderate SEC. 4,5 T. 30 N._ R. 4 E. 3. 0~: National Park Service (Grand Canyon National Park) ADDRESS: Grand Canyon, Arizona 4. PFlliYIOUS WORK: 1. Emmons, s. F., Copper in the red beds o~ the Colorado Plateau region, USGS Bull. 260, p. 221-232, 1905. 2. Waesche, H. H., The Grand View copper prospect, Grand Canyon Nature Notes, Vol. 8. 1934 5. ~rt~EJBErlt?JA • U~J.d c;:oynterMFR _--Jll..u..;J.;____ MODEL ___..:2::::6::::;10::.:.;A;..,_ BACKGROUND ON ----'"-'-'"---- SCALE ----- C/M OR DIAL READING OF . 02 to .04 6. DESCRIPTION OF EXAMINATION: RESULTS: Zones in mineralized outcrop TYPE OF MAPPING totalling over 70' long (5-8' wide) show GEOLOGIC RADIOMETRIC .5 mr/hr and above. Spots to 5.0 mr/hr. One underground cribbed dri~t over 30' long DETAil shows .5 mr/hr with one exposed wall showing RECONN. X X spots up to 12.5 mr/hr. SURFACE X X UNDRGllND. X X 7. MINERALOGIC ASSOCIATION: Malachite, azurite, calcite, quartz, "limonite" kaolin group, undetermined uranium minerals. 8. GEOLOGIC ENVIRONMENT: Gray to b~~ limestone, red shale, white to light-yellow bleached shale, b~~ to pink silici~ied limestone, wnite marbleized limestone. 9· TYPE OF DEPOSIT: Banded limonite and copper carbonates in narrow veins in marbleized, silici~ied limestone; also disseminated limonite, copper carbonates and uranium minerals in ~ractured, altered limestone and shale. 10. GEOLOGIC SKETCH MAP: ll. EXAMINED BY 'l'homas C. Marvin 12. DATE(S) _ ___,8i.llr'-'"'2..!..1-::.:2..:2._/5:z.l"---- 13. HAS A PROOF OR OWNERSHIP FROM BEEN DISTRIBUTED ---"'"---- 14. SUPPLEMENTARY REPORT TO FOLLOW --x NOT NECESSARY - ll7- FILE A-P-109 PRELIMINARY RECONNAISSANCE REPORT EXAMINED BY G. Weathers 2. STATE Arizona COUNTY Coconino DATE(S) EXAMINED -~6~-:.=2'="4::.-5"-"3!______DISTRICT Flagstaff l. SAMPLES NUMBER TYPE AND WIDTH RADIOACTIVITY NEAREST TOWN ~F~l~a£gs~t~a~f~f~------ PROPERTY Slate Mountain and vicini~ LOCATION: SEC. 2 T. 24 N, R. 5 E. 3. TYPE OF EXAMINATION: Checked mountain sides for radioactivity with Halross Scintillometer and El Tronics Geiger counter 4. DIRECTIONS TO DEPOSIT: Follow Valle Road north from Flagstaff for 23 miles, thence west for 4 miles on Slate Mountain Road to top of Slate Mountain. 5. OWNER OR OPERATOR: None ADDRESS: 6. MINE OR PROPERTY HISTORY, PRODUCTION AND WORKINGS: None 7. RADIOACTIVITY: Halross Scintillometer: B.G. 70 cps. Max. 70 cps. El Tronics Geiger counter: B.G. 0.02 mr/hr Max. 0.02 mr/hr 8. DESCRIPTION OF DEPOSIT (A. Topography, B. Geology, C. Mineralogy): A. Rounded mountain, well forested. B. Laccolith consisting of rhyolite in the center overlain in order toward the east by Redwall limestone, Supai sandstone and shale, Coconino sandstone, Kaibab lime stone and basalt. - 118 - FILE A-P- 109. 9· PR 10. OTHER INVESTIGATIONS: Darton, N. H. - A Resume of Arizona Geology, 1925. 11. ADDITIONAL INFORMATION: Not available Section across Slate Mountain from N.H. Darton's "Resume of Arizona Geology" 13. SUPPLEMENTARY RECONNAISSANCE REPORT TO FOLLOW --~No:::_ ____ - 119- I .: I. ,I~' I II I I I I L I I , I I