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  3. Mineral Resource Data System (MRDS)

Explorer Group

Occurrence in Lemhi county in Idaho, United States with commodities Silver, Copper, Zinc, Lead
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10093481
MRDS ID W013472
Record type Site
Current site name Explorer Group
Related records 10144946

Geographic coordinates

Geographic coordinates: -114.52455, 45.11488 (WGS84)
Elevation 2713
Relative position 5.5 MI NE OF WILSON MTN

Site location context

Political divisions (FIPS codes)

Lemhi(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hoodoo Meadows(quadrangle 1:24,000 scale)

Bighorn Crags(quadrangle 1:100,000 scale)

Elk City(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Middle Salmon-Panther(hydrologic unit)

Salmon(hydrologic accounting unit)

Lower Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Salmon-Challis National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Frank Church-River of No Return Wilderness(Wilderness)

Wilderness FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Idaho Lemhi

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 021N 016E 36 Idaho

Comments on the location information

  • 1 MI NW OF CRAGS CAMPGROUND

Commodities

Commodity Importance
Silver Primary
Copper Primary
Zinc Critical Primary
Lead Primary

Materials information

Materials Type of material
Hematite Gangue
Limonite Gangue
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Fe Stain; Chloritization

Analytical data

Result RANDOM FLOAT SAMPLE CONTAINS 0.17 OZ. AG/TON, 0.01% CU, 0.05% PB, 0.30% ZN

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock
    Stratigraphic age (youngest) Eocene
    Stratigraphic age (youngest) Eocene
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Crags Pluton-Granite Porphyry;Dikes-Mafic Rock (Diabase);Dikes-Aplitic Rock
    Rock description Crags Pluton-Granite Porphyry;Dikes-Mafic Rock (Diabase);Dikes-Aplitic Rock
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) Challis intrusive rocks.
ListMap

Economic information

Comments on the geologic information

  • MAFIC DIKE STRIKES N 50 DEG E; APLITIC DIKE STRIKES N 50 DEG W

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1961
Discoverer W.L. Bishop

Mining district

District name Crags Addition

Land status

Ownership category National Forest
Area name Salmon National Forest
Ownership category National Primitive Area
Area name Idaho Primitive Area

Reference information

Bibliographic references

  • Deposit

    CATER, F.W., AND OTHERS, 1973, MINERAL RESOURCES OF THE IDAHO PRIMITIVE AREA AND VICINITY, IDAHO: U.S. GEOLOGICAL SURVEY BULL. 1304, 431 P

  • Deposit

    1973 RECON F.W. CATER, BULL. 130

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1974 Miller, Pat J. U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

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