116°15'

116°15'

116°00'

116°00'

115°45'

115°45'

115°30'

115°30'

115°15'

115°15'

47°30'

47°30'

47°45'

47°45'

48°00'

48°00'

48°15'

48°15'

0 5 10 15 202.5Kilometers

0 4 8 12 162Miles

BENEWAH COUNTY

KOOTENAI COUNTY

MINERAL COUNTY

SANDERS COUNTY

SANDERS COUNTY

LINCOLN COUNTY

SHOSHONE COUNTY

BONNERS COUNTY

Pend Oreille Lake

THOMPSON PASS FAULT

OSBURN FAULT

HOPE FAULT

SN

OW

SH

OE

TH

RU

ST

FAU

LT

MO

YIE

TH

RU

ST PL

AT

E

Coeur d' Alene Mining District

A

H

G

B

C

D

J

I

Hope

Clark Fork

Thompson Falls

Lookout Pass

Wallace

Kellogg

+

DDH FC-4

DDH HC-4

DDH CC-1

DDH SL-130

DDH SL-136

DDH DC-3

DDH DC-2

DDH JFW-1

DDH SL-122

DDH SL-139

DDH JF-79-1DDH JF-79-4

DDH JF-12

DDH SL-132

DDH SL-138

DDH SL-93

DDH SL-106DDH SL-60

DDH SL-123DDH SL-31

DDH SN-2

DDH SN-5

DDH SN-3

DDH SN-1

DDH SN-4

DDH RC-58

DDH RC-49DDH RC-43 DDH RC-47

DDH HF-1

DDH VR-11

DDH VR-4

DDH TC-5A

DDH TC-10

DDH TC-9

DDH TC-8DDH TC-7A

DDH MG-6

DDH CP-5

DDH CP-4

Kellogg

DDH SN-2

Fairway Creek

Hiatt Creek

Cub Creek

Troy

Ross PointRoss Point West

Dry Creek

Bull Lake East

J-F

Twilight Creek

Rock Creek (East Fork)

Goat Rocks

Goat Rocks (lower)

Bull River (East Fork) 1, 2, 3

Chicago Peak (White)

Lost Girl

Devils Club Creek

Hayes Ridge

Snake Creek

GM claims

Horizon BasinCopper Gulch

Rock Peak

Rock Creek

Montanore

Late GroupEngle Peak

Government Mountain

McKay Creek

Hill Farm

Green Mountain

McKay Creek, South

McKay Creek, NorthMcKay Creek, (White)

Soldier claims

Star Gulch

Squaw Peak

Sims Creek

Vermilion River

White Penney

Trout Creek

White Pine Creek

Ripper Creek

Sex Peak

Picante

Silver Creek

NiagaraCopper Camp

White Creek

Beaver Creek

Silver Aurora-Capitol Silver

Twomile

Revett Lake

Rabbit Gulch

Military Gulch

National

Snowstorm

Lucky Calumet

Snowshoe

MissoulaChipmunk Creek

Janstan group

Clear Peak

Copper Rock

Brooks Mountain

Standard Creek

GunsightMountain

KilbrennanCreek Wee Lake 1, 2

Revett Lake

Stanley Peak

Mount Vernon

Squaw Peak

Clark Fork

Granite Creek

Waloven Creek (Lower)

Waloven Creek (Upper)

Sims Creek (West Slope)

Sims Creek 1 (East Slope)

Miners Gulch (Vermilion River)

Rush LakeVermilion River (White)

Slide Rock Mountain

Deep Creek

Graves Peak

Graves Creek Falls

Thompson River

White Pine Creek 2-4

Ripper Creek

Miller Gulch (Sex Peak)

Beaver Creek Road

Little Beaver Creek

Windfall Peak

West Fork Trout Creek 2

West Fork Trout Creek 1

Trout Creek (White)

Trout Creek 1, 2

East Lake

Bloom Peak

Niagara/Eagle Creek

Bobtail

Cottonwood

West Fork Eagle Creek 5

West Fork Eagle Creek 3

West Fork Eagle Creek 1

Prichard Creek

Coeur d'Alene River 3

Coal CreekCastle Rock

Little Grizzly CreekGrizzly Creek

Graham Creek

Silver Creek

Maple Cliff

Timmies section

North Fork Coeur d'Alene(Section 25-road)

Little Teepee Creek 1, 2

North Fork Coeur d'Alene(Section 20NE)

County Creek

Bumblebee Road

Browns Gulch

North of Prado Creek

LaTour Peak-Boise Peak

Janstan

Revett Lake

Lower Glidden Lake

Lower Military Gulch

Upper Military Gulch

Spokane CreekWest Fork Crow Creek

Spokane-Chipmunk Ridge 3

Chipmunk 1

Chipmunk 2

Twentyfour Mile Creek(Clear Peak 1)

Beaver Lake 1, 2

Beaver Peak North

Clear Peak (White)

Hope-ThompsonGame Preserve

Rush Lake

MAP OF THE REVETT FORMATION, WESTERN MONTANA AND NORTHERN IDAHO, SHOWING THELOCATIONS OF MINERALIZED STRATA, DIAMOND-DRILL HOLES, AND MEASURED SECTIONS

ByDavid E. Boleneus, Larry M. Appelgate, Mary H. Carlson and Kenneth C. Assmus

U.S. DEPARTMENT OF INTERIORU.S. GEOLOGICAL SURVEY

SCIENTIFIC INVESTIGATION REPORT 2005-5231PLATE 1

Base map, hydrography, political boundaries, and cities based on ESRI Data and Maps CD (ESRI, 1999)

Projection: Universal Transverse Mercator

North American datum 1927, Clarke 1866 spheriodCentral meridian: long -117.00 WReference latitude: 0, scale factor: 0.996False easting and northing: 500,000; 0

EXPLANATION

County (solid) and State (dashed) lines

Boundary of study area

Thrust fault—Teeth on upper plate (Boleneus and others, 2001a)

Normal or reverse fault—Tickmarks on downthrown side or on lower plate

Fault—Arrows indicate directions of relative movement (Boleneus and others, 2001a)

Copper-silver deposit, mine, prospect, or occurrence in the Revett Formation (see databases)

Diamond-drill hole (DDH) (see databases)

Measured section (see databases)

Outcrop of the Revett Formation—Line shows limit of outcrop in areas where outcrop is

Copper-silver mineralized domains of the Revett Formation

Resource (subsurface)

Mineralized rock (subsurface), indicated (dark) or inferred (light) (see databases)

Mineralized outcrop, upper member

Mineralized outcrop, lower member

Line of cross section (see cross sec. A−B, pl. 2; cross secs. G−H, I−J, fig. 8)

overlapped by other patterns

(Boleneus and others, 2001a)

116°00' 115°45'

48°30'

48°45'

0 2 4 6 8Kilometers

0 1 2 3 4Miles

MO

NTA

NA

IDA

HO

NORTHERN AREA(see index map to lower right for location)

MONTANA

IDAHO

Belt Basin

Northern area

Study area

INDEX MAP

Little Spar Lake