West Fork Cobalt Prospect

Occurrence in Lemhi county in Idaho, United States with commodities Cobalt, Copper, Nickel
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. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Mining district
  12. Land status
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10096238
MRDS ID W013490
MAS/MILS ID 0160590074
Record type Site
Current site name West Fork Cobalt Prospect

Geographic coordinates

Geographic coordinates: -114.37013, 45.09928 (WGS84)
Elevation 1890
Relative position 6.5 MILES W. OF COBALT, IDAHO

Site location context

Political divisions (FIPS codes)

Lemhi(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Blackbird Creek(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)

Geographic areas

Country State County
United States Idaho Lemhi

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 021N 018E 32 SE Idaho

Comments on the location information

  • 2 3/4 Mi. Up W. Fk. Blackbird Cr. From Patty B.

Commodities

Commodity Importance
Cobalt Critical Primary
Copper Tertiary
Nickel Critical Tertiary

Materials information

Materials Type of material
Chalcopyrite Ore
Magnetite Gangue

Analytical data

Result .8 % NI

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Gabbro
    Rock unit name Gabbro
    Rock description Gabbro
    Stratigraphic age (youngest) Eocene
    Stratigraphic age (youngest) Eocene
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Belt Supergroup
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Schist
    Rock unit name Belt Supergroup
    Rock description Belt Supergroup-Schist, Quartzite

Nearby scientific data

(1) -114.37013, 45.09928

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Blackbird District

Land status

Ownership category National Forest
Area name Salmon National Forest

Workings at the site

  • Type of workings Underground
    Length 121.92M

Comments on the workings information

  • 1 Tunnel

Reference information

Bibliographic references

  • Deposit

    Anderson, A.L., 1943, A Preliminary Report On The Cobalt Deposits In The Blackbird District, Lemhi County, Idaho: Idaho Bureau Of Mines And Geology Pamphlet 61, 34 P

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1976 Siefken, Robert R. (Miller, Pat) U.S. Geological Survey
Reporter 14-NOV-1983 Western Field Operations Center (WFOC) U.S. Bureau of Mines

Beyond USGS

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