UNITED STATES DEPARTMENT OF THE INTERIOR
GEOLOGICAL SURVEY

11609,

NS

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BOBTAIL
PS PEAK

BULLETIN 1027 PLATE 57

HORSESHOE
PEAK

PRICHARD CREEK

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WEST FORK
f) EAGLE CREEK

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BAST FORK

EAGLE CREEK
EAST FORK

EAGLE CREEK

BEAVER CREEK

Paragon Gulch

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Base map from U. S. Forest Service
planimetric maps of Coeur D'Alene
National Forest, 1937

1

5000

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GEOLOGIC MAP AND SECTIONS OF THE MURRAY AREA, SHOSHONE COUNTY, IDAHO

15,000 Feet

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Geology by John W. Hosterman, 1952

EXPLANATION
SEDIMENTARY ROCKS

Alluvial deposits

Older gravels
Undifferentiated gravels older than Qal ;
saa omy A al

GM
ZZ
Striped Peak formation
Interbedded impure quartzite and aril, weualy thin bid
=

lors range and pink to gray and green; man
Sisling aces ste fons can” z

Wallace formation

Interbedded fine-grained lig ‘usually limy quartzite
ed array i, Bods Yange rom TW faces in
thickness. Thinly laminated dark-gray argillite and some
light-gray limy quartzite in upper part. Shallow water
features are common

‘St. Regis formation
Typed by purplish color of rocks, Grades from light-ourple
qua

urtzite at base to thi dark-purple and gray argill
g| maar the top "
be Vpiidddl
g Revett quartzite

‘Thick-bedded vitreous white quartzite. Crossbedded and,
laminated in part. Grades into less pure quartzite at
bottom and top

Burke formation

‘Thin-bedded light- to greenish-gray fine-grained argillaceous
(quartzite and some white to fightpurple thick-bedded
quartzite. ‘water features are common

Prichard formation
Upper part, pepu , thin- to thick-bedded bie to white
‘pure to org uartaieinerbeddsa Uh thoy
a irkegray argillite. Shallow water features

‘are common. Lower part, p€pl, banded dark-gray argillite,
laminated in part; partings usally contain many pyrite
crystals. Weathers rusty red

IGNEOUS ROCKS

Solid lines where exposed; dashed where imately loeated.
hie marion rroptars ond dite ole etan
bie

Contact”
Dashed where approximately located; dotted where concealed

Gradational or indefinite contact

eee
D
Fault, showing dip
Dashed where approzimately located; dotted where concealed
1, uptown side 0, downthrown side

—
Vertical fault

ee
S Doubtful or probable fault
a

a
Anticline
Trace of axial plane; dashed
where approximately located

Syneline
‘Trace of arial plane; dashed
‘where approximately located

Strike and dip of beds

a
Strike and dip of overturned beds
Strike of vertical beds

e
Horizontal beds
onedleee

Veins, showing dip
Dashed where approximately located
66,

Portal of adit

Number identifies adit in list below

3
Portal of caved adit
Number identifies adit in list below

n
Shaft

MINES AND PROSPECTS

BEAVER MINING DISTRICT. Monarch
" setae
5 aetinte SS Buck Hone
 Alfaretta 40. Upper Paragon
—_— St Pat
aot © lone
6 Bee Bear Top
1. Hill 4. Orofine
1% Gaiden Chet
ae © Moertote
1h Sete 1 Dew Drop
11. Tacoma 48, Pilot
12. Dewey sow
a oe 50. th Moray Pontie)
‘M4. Virginia 51, Anchor
1S: RayJoterson
COBUR D'ALENE MINING
i Bee Gee DistRict
Ts Galan 52, Buckeye Boy
19. Interstate bi ee ua
20: Corde Queen Up im
2 Note 55. Pots
2 loon Be; ony Lae
23, Tough Nut ‘67. A and M
ofc 55. Matt
2 Parat $2, Pow Suare
28. Stu Bul ony
Siver
eerie EAGLE MINING DiSTRIC?
23: Sune Tue! 61, Jack Wate (dao)
30. Hob fey © Jack Wate (forte)
Gane s Biver ead
St Seowanee
summer unvine pisrmscr —& Srowtion
48: James 66: Gta bad
A ees BEAVER MINING DISTRICT
55. Gant Leare 61, Rooster Gone
3 Vendo Of Hehand Barra

en
‘QUATERNARY

——S
PRE-

PRE-CAMBRIAN

CRETACEOUS
AND. CRETACEOUS