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PLATE 2 PLATE , Pinedale P —Boundary diffuse PROFESSIONAL PAPER 1666 PROFESSIONAL PAPER —May be combined with foliation symbol Any use of trade names in this publication is for descriptive purposes only and does not imply endorsement by the U.S. Geological Survey For sale by U.S. Geological Survey Information Services CO 80225 Denver, Box 25286, Federal Center, 1-888-ASK-USGS ArcInfo coverages and a PDF for this map are available at http://pubs.usgs.gov/ , Bull Lake; Bl ORDOVICIAN CAMBRIAN QUATERNARY TERTIARY CRETACEOUS JURASSIC TRIASSIC PERMIAN MESOPROTEROZOIC — Meta-intrusive rocks Metamorphosed strata —Showing plunge —Showing plunge where known High-grade metamorphic units —Showing bearing and plunge where known Undifferentiated metamorphic rocks Undifferentiated —Ball shows top direction of beds LAURENTIAN CONTINENTAL ROCKS LAURENTIAN CONTINENTAL —Dashed where approximately located; dotted concealed. —Dashed where approximately located; dotted concealed; Late —Ball shows top direction of beds —Showing dip where known Early Lower Upper —Showing plunge —Showing plunge where known. Dashed approximately Jurassic High-grade metamorphic rocks, terrane unknown —Showing plunge —Showing plunge where known. Dotted concealed Permian Permian —Dashed where approximately located; queried uncertain. Upper Cretaceous Triassic pre-Permian Cretaceous to Permian Cretaceous and Jurassic queried where uncertain. Sawteeth on upper plate located Jurassic) Permian) (Jurassic to Permian) Mesoproterozoic?) Umbrella Butte Formation (Cambrian? and Neoproterozoic) Missouri Ridge Formation (Neoproterozoic) Moores Lake Formation (Neoproterozoic) Goldman Cut Formation (Neoproterozoic) Moores Station Formation (Neoproterozoic) Edwardsburg Formation (Neoproterozoic) Anchor Meadow Formation (Neoproterozoic?) Square Mountain Formation (Neoproterozoic?) Plummer Point Formation (Neoproterozoic?) Scratch boundaries used where contacts omitted Bar and ball on downthrown side where relative movement known Inclined Inclined Overturned Overturned Vertical Inclined Vertical Squaw Creek Schist Lightning Creek Schist Fiddle Creek Schist Gospel Peaks succession D Gospel Peaks succession C Gospel Peaks succession B Gospel Peaks succession A Gunsight Formation, upper part (Mesoproterozoic) Apple Creek Formation, upper part (Mesoproterozoic) Anticline Overturned anticline Antiform Syncline Overturned syncline Synform Minor anticline Strike and dip of bedding Strike and dip of foliation Bearing and plunge of lineation Profile Gap–Johnson Creek shear zone Metamorphosed quartz diorite, tonalite, and granodiorite (Cretaceous Metamorphosed volcanic/plutonic complex (Cretaceous and Jurassic to Metamorphosed rocks of Blue Mountains island arc, undifferentiated Amphibolite gneiss (Jurassic to Permian) Riggins Group (Jurassic to Permian) Syenite and diorite (Ordovician to Cambrian) Syenite-diorite suite (Neoproterozoic) Amphibolite gneiss and amphibolite dikes (Neoproterozoic? Granitic augen gneiss (Mesoproterozoic) Gray marble (Cambrian or Neoproterozoic) Windermere Supergroup Swauger Formation (Mesoproterozoic) Lemhi Group Argillaceous quartzite (Mesoproterozoic) Hoodoo Quartzite (Mesoproterozoic) Formation (Mesoproterozoic) Yellowjacket Biotite-feldspar quartzite (Mesoproterozoic) Biotite phyllite, gneiss, and migmatite (Mesoproterozoic) Quartzite and layered quartz-rich metasandstone (Mesoproterozoic) Calc-silicate and biotite gneiss (Mesoproterozoic) Metamorphic rocks, undivided (Neoproterozoic? and Mesoproterozoic?) Contact Glacial limit or terminus Normal fault Thrust fault b Baker ၢၦ 20 terrane 10 sd ? ? Printed on recycled paper Bl 85 50 30 85 40 ZYs Zub ၤ Ze Ys Yq Yy Yh Zgm Ylg Zsd Zgc Yaq Ybc ZYs JPrl Zml Zpp JPrf KJtf Ygn Zmr JPrs Zms Zsm Ylau Zam Ybfq Yagn ၤ JPmv JPam O ၤ KJPvp Tg Td ZYam Tgp Tgd Undifferentiated gn metamorphic rocks ၢၦ Yq Tcri Ygn Tcrg units Ybfq

m sd High-grade sw Gospel Peaks succession Peaks Gospel metamorphic Psh JPrf ၣ

JPrs Psw ၣ

Group* Riggins D C B A Yy Ybc Yh Tcr Tpr Yaq Basalt Group Columbia River Wallowa terrane Wallowa s ? Pd ၣ Pqd ? Zub Ys Ze Ylg Kgn Zgc Zpp Zml Zmr Zsm Zms Ylau Zam ၤ

*Shown in order of present superposition,

? Kg Supergroup Windermere Ktf Qu which may be tectonic rather than stratigraphic Kpg Kgdf KJqd JPmv JPam JPrl Kpgdf h gd qd gb ၣ Tce Twp Tcm ၣ ၣ ၣ intrusive rocks terrane caldera terrane unknown Metamorphosed strata Kpgdm SALMON RIVER Olds Ferry Post-amalgamation Older plutonic series IDAHO BATHOLITH SUTURE COMPLEX Zgm Younger plutonic series Younger CORRELATION OF MAP UNITS CORRELATION Van Horn Peak Horn Van KJPvp ၤ Tw ? ? Jwr KJtf Jwa ZYam High-grade metamorphic and plutonic rocks, WEISER EMBAYMENT Tp Tcl Tct Tcs Tcll QTi Tcd Tcp Tcbr Izee terrane Zsd Challis Volcanic GroupChallis Volcanic Hypabyssal intrusive rocks Jws Yagn CHALLIS MAGMATIC COMPLEX CHALLIS MAGMATIC Tc LAURENTIAN CONTINENTAL ROCKS LAURENTIAN CONTINENTAL sd Izee terrane ၤ Baker terrane Meta-intrusive rocks Thunder Mountain caldera O Wallowa terrane Wallowa Metamorphic rocks u Metamorphic rocks Olds Ferry terrane Older plutonic series IDAHO BATHOLITH ၢ Challis Volcanic Group Challis Volcanic Younger plutonic series Younger WEISER EMBAYMENT Van Horn Peak caldera Horn Van LIST OF MAP UNITS ALLOCHTHONOUS ROCKS OF BLUE MOUNTAINS ISLAND ARC ALLOCHTHONOUS ROCKS OF BLUE MOUNTAINS Hypabyssal intrusive rocks Thunder Mountain caldera Columbia River Basalt Group Post-amalgamation intrusive rocks CHALLIS MAGMATIC COMPLEX CHALLIS MAGMATIC SALMON RIVER SUTURE COMPLEX [Boxes colored only for units shown on this sheet] Grande Ronde Basalt Imnaha Basalt Latite of Lookout Mountain rocks of Dewey mine Volcaniclastic Sunnyside tuff Buff rhyolite Perlitic rhyolite Lapilli tuff Lower latite lava of Ellis Creek Tuff Andesite tuff Rhyolite tuff Seven Devils Group, undivided (Triassic) Doyle Creek Formation (Upper Triassic) Wild Sheep Creek Formation (Upper and Middle Triassic) Hunsaker Creek Formation (Lower Permian) Windy Ridge Formation (Lower Permian) Alluvial, landslide, and glacial deposits (Quaternary) Idaho Group (Pleistocene and Pliocene) Payette Formation (Miocene) (Miocene) Basalt of Weiser (Miocene) Pyroclastic deposits of Weiser Basalt of Cuddy Mountain (Miocene) Columbia River Basalt Group, undivided (Miocene) Challis Volcanic Group, undivided (Eocene) Challis Volcanic Porphyritic rhyolite to dacite dikes and plugs (Eocene) Granite porphyry and minor rhyolite (Eocene) Hornblende-biotite granite (Eocene) Fine-grained hornblende-biotite granodiorite (Eocene) Diorite (Eocene) Biotite-muscovite granite () Porphyritic muscovite-biotite granite-granodiorite (Late Cretaceous) Foliated biotite granodiorite (Late Cretaceous) Foliated hornblende-biotite tonalite (Late Cretaceous) Foliated porphyritic biotite granodiorite (Late Cretaceous) Gneissic porphyritic biotite granodiorite () Heterogeneous orthogneiss complex (Early Cretaceous) Quartz diorite and tonalite (Early Cretaceous? Late Jurassic) Metamorphosed ultramafic rocks () Formation (Jurassic) rocks of the Weatherby Volcaniclastic Porphyritic biotite granodiorite () Hornblende-biotite quartz diorite (Late Triassic) Hornblende gabbro (Late Triassic) Huntington Formation (Upper and Middle Triassic) Martin Bridge Formation (Upper Triassic) Seven Devils Group Metamorphosed quartz diorite (Late Permian?) Metamorphosed mafic plutons (Late Permian) Mafic gneiss (Mesozoic and Paleozoic) Phyllite and chert of Baker terrane, undivided (Mesozoic Paleozoic) ALLOCHTHONOUS ROCKS OF BLUE MOUNTAINS ISLAND ARC ALLOCHTHONOUS ROCKS OF BLUE MOUNTAINS b gn s u h m sd gd qd gb sw Tc Pd Tp Tg Td ၣ Kg Tcl Ktf Tw Tct Qu Tcr ၣ Tcs Tcll Tce QTi ၢ Tcd Tcp Psh Tcri ၣ Pqd Jwr Tgp Tgd Psw ၣ Kpg Kgn Jws Jwa Twp Tcm Tcrg Tcbr ၣ ၣ ၣ ၣ Kgdf ၢၦ KJqd Kpgdf ၢၦ Tpr Kpgdm Base from U.S. Geological Survey, Bighorn Crags, Challis, Pistol Creek, 1982, Elk City, Warren, 1981. Projection: Universal Transverse Mercator, zone 11. 1927 North American Datum See "Index to sources of geologic mapping" (fig. A2). Preliminary Arc/Info database by Pamela Derkey and Theodore Brandt, USGS, and Jon Oblad, Eastern Washington University. Final Arc/Info database by Gregory N. Green, USGS. Editing and digital cartography by Alessandro J. Donatich, Central Publications Group Manuscript approved for publication August 5, 2003 00' °

45

Ygn

Tg Tg

35

Yy

Tg

Tgp

Yh

sd

Yh

Yh

ၤ O

40

70

50

Tg

Tgp

n

Ygn Tgp 8 MILES

40

Yag

Kgdf

n

Tgp

sd ၤ

50

Yag O

62 Tce

30 Tc

19

35 CRAGS

PLUTON Tg

BIG HORN

Tgp

Yh Yh

10 KILOMETERS 10 Ylau

80

50

45

Tgp

n Ygn

9

Kpg

Ygn Tg

70

Yag

Ygn

Tg Tgp 67

30 YELLOWJACKET PLUTON Kpgdf

30 Tg

35

Tc

Tgp

Kpg

Yy Tg

45 Tce

40

20

78 Tg 5

40 Tgp 45

75

Ktf 6

Ygn N ZYs

30 Tg

60 Ybc

4

Yh

Kgdf

Yh

Kgdf

5 Kgdf

Qu

Tgp

Kgdf

Ygn Ylau

40 Ybc By

2004

Qu

Ybc Qu

4 Qu

3 Ygn

3 Tg SCALE 1:100 000

Karen Lund Kgdf

3 PLUTO Qu

70

Yh CONTOUR INTERVAL 50 METERS

2

ZYs Qu

2

Tgp

Tgp

s

Zms

Kgdf

Yh

Zm

Tc

Yy Tgp 65

1

Ybfq

Tgp

Kpg

WEST-CENTRAL IDAHO WEST-CENTRAL Qu 01 80

80

Ze

Kpg

Tce

Tg

Kpg Tce 1

0

Tgp Tg

l

Tct

Yaq

Tcl Tc

1

Tgp Tce

80

Yh

Tce Yaq

45

70

Ygn Tgp

80

Tg

Qu

Qu

Tgp

Tg

Yaq

Tct Yy

45 Td

40

Yh

Zsd

65

Tgp Td

CASTO

Yh

Td Tgp

IDAHO Qu

20

30 (Area of Plate 2 in pink)

60

Tpr

Tgp

Tc

Td

Tgp

Tgp

Qu

Tg

Yy

Tct

l Tce POINT SUITE RUSH CREEK

50

15

85

Tgp

Tcl Qu

INDEX TO PAYETTE NATIONAL FOREST NATIONAL INDEX TO PAYETTE

Kpg

Qu

Tc Tgp

GEOLOGIC MAP OF THE EASTERN PART OF THE PAYETTE NATIONAL FOREST, FOREST, NATIONAL OF THE PAYETTE GEOLOGIC MAP OF THE EASTERN PART

Tpr Tgp

15

Kpg

Tgp

r

Qu

Yy

20 Tcs

Tgp

Zm

Ygn

Tgp

Qu Tct

30

45

Ygn

Ybfq

Kgdf Qu

40

Tg Zub

60

Tgp

Zmr

Tgp

Tgp

Tcp

Kpgdf

Ybfq

Tg Tg

20 Tgp 30'

°

Tc

Tgp Tct

45 Tgd

40

Zub Qu

49

Qu

Tct 00' Tcp

°

Tgp

Tgd

Tcp Tgp

115 Tgp

50 00'

40

°

Tgp Ybfq

115

Tgp

r

Tct

Tgp

Zub

ZYs

pgdf

Zpp

Zm

ZYs

K

Qu

Qu

Ylg

Td

Tg Tcs

30

Tc

Ylg

Tc Tc

20

BASIN PLUTON Tgp

c

T

Tgp

ZYs

ct Zub

20

40

Ygn

T

cd

ၤ T

14

Zpp

Tc

Tcl Ybfq

35

Zub Kpgdf

35

ၤ Tc

10 Tcd

U.S. DEPARTMENT OF THE INTERIOR U.S. DEPARTMENT U.S. GEOLOGICAL SURVEY Tcs

Zmr Tcs

AIN CALDERA Tct Tgp

40

Tg Tcs

80

Ygn

Kgdf

Zsd Ybfq

SUITE Td

IN cs

Tpr T

ACORN BUTTE

Qu

Ylau

Qu

Tgp

Ylg

ZYs

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Kpg

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Qu

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Ylg

Qu

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Zsm

Ylg

Zsm

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Kpg Kgdf

30

r Zsd

15

Tcs

Tcb

Zsd Tgp

30

Tgp

r

Qu

ZYs

Ylg

Tgp Tcb

35

r

Tg

Tpr

Tg

Tcbr Tcb

40

CHAMBERLA Tg

Tcs

Tcs Ygn

85 Ylg

15

Qu

Tct

Tg

Tc

Kpg

Tg

Ylg Qu

85

Ylau Kpg

65

80

Zsd

r r

35

Tcb

Tcb

Tgp Qu

35

SUITE

Tpr Zsm

5 Ybfq

RAMEY RIDGE 50

10

THUNDER MOUNT

l

Tcl Qu

30

Tg

Qu

Ze

Kg

Ybfq

Tgd

ZYs

Zgc Tct

15 Kpg

15

T

Zml Zmr

10

s

Qu Zsm

57

l

Zmr

ZYs Ze

L Zpp

Td

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Tcl

Zsm

Tc

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Cinnabar Peak Ygn

35

Zms l

65

Zsm

Qu

Qu

Tpr ၤ

55

Zpp 64 Zgc

75 Zmr

Zm

Zgm

Ylau

Zmr Qu

20

Ygn

ZYs

Ze

Ybfq

Ze

Qu Qu

63 Zub

40

Tgp

Qu

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47

Qu Qu

35

Zub 30

Tgp

Tg

Ylau

Zam

Zsm

l

Zml

Kpg

Qu

Zub

Zsm Kg

75

Zm

Zmr

Kpg

Tgp

FAU 58 Ybc

62 Zub

EK DIKE SWARM DIKE Qu EK

Qu

Ylau

Ygn

Kpg

Qu

Zsm

Zsm

Zml

Qu

Zpp

Kpg

Zmr

Qu

Ze

Zam Tg

35

76

Zmr Zam

55

20

Kpg

Kg

Ybc

Kgdf

Tc

Td

Zam Tgp

74 Zml

40

Qu

Tg

Tpr

Ygn Zpp

FAULT

Qu

Zmr

Zgc

Zub

Zms

Qu

Zsm

Ybc

Zub

l

Zgc

Ylau ၤ

MEADOW CREEK

Tc

Zpp

r Zm

35 Kpg

20 Kgdf

25

Ygn Kpg

68 35

Ybfq

Kpg

Ygn Zm

22

Qu

Zmr

Ktf

Tgd

r

Tgd Ybfq

Ybc SWARM

Zpp

Qu

CREEK Zm

Ktf

Zub Zml

Ybfq CRE PISTOL

Zpp

Ygn

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76

Kpg Kpg

40

ZYs Tc

38

r

Zgc

Zml

Td r

10

Kg

Kpg

Zam

Zub Zpp

Zm

Ybfq Zub

50

Zgc

Tgp

Ktf

ၤ Ylg

REEK DIKE REEK Zm

Zm

Zml

Ygn

Ygn

ZYs

Qu Zub

IN Kpg

ZYs

Zmr

Zub

Zpp

Tg

Zub

77

SMITH C Tgp SMITH

ၤ – Qu

2

r

Kpg Tpr

M Ktf

Kpg

Ylg Zsm

40

Zml Qu

70

Ybfq

Zm

Zpp

Ybfq

ZYs

A Kpgdf

Tgp

70 Ylg

Tpr

Qu

Ybfq Qu

Kpg GAP PROFILE G Ys

15 Ygn

67

80

Ys

Ylg

Zpp

Qu

Kpg Kpg

13

Zpp

Tgp

Zam

Tgd

Ylg Ylg

R Zsm Qu

64

ZYs

Kpg

Qu

Zam

Ygn

Zsm

Ybc

Kg

Tgd

Tgp

Qu Zsm

30

88

Tg

Kpg Tg

70

Zsm

Qu Tpr

BA Qu

Ybfq

65 ARM Kpg

65

Ybfq

Zam

Zpp

Kpg

Ktf

ZYs

Tpr

Qu

Kpg Qu

15 Qu

Zsm

Ygn

Ybc

Ybfq

Zpp

Tgd Ybfq 30'

°

Ygn

Ylg

Tgd

Tpr Tgd 30

115 Tpr

35

50 Kpg

115

Kg

Qu

Kpgdf

Ygn

Qu

Tg

PLUTON Qu

45

65

15

Zsm Zsm

63

5 Qu

70

Kpg

60

AGE POINT AGE

Tgp

RAINBOW RIDGE DIKE SW DIKE RIDGE RAINBOW

Kpg

Ygn SAV

Tgd

Kpg

Qu

Ygn

Kpg

Kpg

Ybfq

Qu

Qu

Kpgdf Ybfq

35 Qu

50

Zam

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Kpg

Kg

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Kpg

Qu

Kg

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37

Qu

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Qu

Ybfq

Qu

Qu

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Kg

Kg

Kgdf

Kpg

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Qu

Kpg

Qu

Ybc

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Qu Qu

Qu 38

Yq Qu

61

14

Qu Qu

T Qu

Ybc

Ybc

Ybc Qu

46 Qu

69

Kpg

Kpg

Qu

Zam

Ygn Zsm

40

56 Kgdf

47

Qu

Zub

Kg

Yq

Qu

Qu Kpg

70

Qu Zub

42

60

Ygn Ze

50 Ygn

52

Zpp

Zam Yq

RIVER FAUL Qu

27 Zub

45

Ygn

Zms

Kg

Qu Zub

75

Zsm

Kg Yq

75

Kpg Qu

86 Zpp

10

Ze

Qu

Qu

Kgdf

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ၤ Kpg

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ၤ Zsm

– Qu

80

Kg

Zpp

Kpg

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Qu

Qu Ze

75 EK

54

Ybfq

Qu

Zpp

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Zpp Kpg

48

Ybfq

Zms Qu

40 Qu

80

32

80

40

Qu

Ybfq

Zsm

Zub Zsm

65

Zub

Zpp

ၤ Zam

35 Ze

40

Zam

Ybfq

Kg

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64 ၤ

60

43

Zpp

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60

80

85

Zm Ze

65

64

Qu

Ze

Qu Kpg

80

32 Zms

80

LAKE CRE Qu

Kgdf

Zub

Zml

Zub Qu

80

Zub Zms

Qu

Zmr Ktf

80 Zsm

65

75 Qu

42 Zam

80

55

80 Qu

55

Kgdf

Qu Kgdf

85 Zpp

80 Qu

75

Zub

Qu

Qu

Qu

Kg Qu

65 Ze

75

55

Qu 80

Qu

Zpp

ZYs Qu

60

ZYs

Kgdf

Kgdf

Qu

ZYs

Zub

Ktf ၤ

74 Qu

60

Ts

Kgdf Qu

80

60 Kgdf

80 Kgdf

70

Kgdf Zgm

35

25

Ktf

Qu

u

Qu

ZYs

Ts

Kgdf

Q

Qu ZYs

80

40

Tcr Qu

80 ZYs

70

Qu

Ts

Kg

ZYs

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25

80

47 ၤ

70

Ktf

Qu Ktf

70

Kgdf ZYs

31

60

Ktf Ktf

85

Ktf Ktf

70 Ktf

84

80

ZYs

Qu Ktf

60

Tcr

Ktf

Qu

ZYs Qu

80

80 65

Qu

ZYs

s Ktf

75 Ktf

Qu

Ktf T 00'

00'

Qu

ZYs

Qu

Qu Qu ° ° 116 30' 116 00' ° ° 45 45