Black Bear Prospect

Occurrence in Lemhi county in Idaho, United States with commodities REE, Thorium, Uranium
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. Geologic structures
  12. Ore body information
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10071978
MRDS ID W015776
Record type Site
Current site name Black Bear Prospect
Related records 10120447

Geographic coordinates

Geographic coordinates: -113.502, 44.96209 (WGS84)
Elevation 2042
Relative position 7 MI E OF TENDOY

Site location context

Political divisions (FIPS codes)

Lemhi(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Agency Creek(quadrangle 1:24,000 scale)

Leadore(quadrangle 1:100,000 scale)

Dubois(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lemhi(hydrologic unit)

Salmon(hydrologic accounting unit)

Lower Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management ID)

Bureau of Land Management ID BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Idaho Lemhi

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 019N 025E 21 Idaho

Comments on the location information

  • HIGH ON S SLOPE OF AGENCY CREEK ON A SMALL TRIBUTARY THAT JOINS AGENCY CREEK NOT FAR E OF WHITE CREEK

Commodities

Commodity Importance
REE Critical Primary
Thorium Primary
Uranium Primary

Comments on the commodity information

  • SOME OF DEPOSIT HAS HIGH RADIOACTIVITY

Materials information

Materials Type of material
Euxenite Ore
Monazite Ore
Pyrolusite Ore
Pyromorphite Ore
Rutile Ore
Thorite Ore
Wulfenite Ore
Apatite Gangue
Biotite Gangue
Feldspar Gangue
Microcline Gangue
Quartz Gangue

Alteration

  • (Local) Chlorite

Analytical data

Result 1 CHIP SAMPLE HAD 0.082% THO2

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Lemhi Quartzite
    Rock description Lemhi Quartzite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -113.502, 44.96209

Economic information

Geologic structures

Type of structure Local
Structure description Fault

Ore body information

  • General form LENTICULAR
    Thickness 5.79M
    Length 22.86M

Comments on the geologic information

  • DIKE STRIKES N30 DEG W AND DIPS 60 DEG SW

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discoverer Earl Pyeatt, G. E. Shoup

Mining district

District name Lemhi Pass Area

Land status

Ownership category BLM Administrative Area

Workings at the site

  • Type of workings Surface
    Overall length 22.86M

Comments on the workings information

  • 2 PROSPECT PITS

Comments on development

  • 11 CLAIMS OR MORE

Reference information

Bibliographic references

  • Deposit

    STAATZ, M. H., 1972, GEOLOGY AND DESCRIPTION OF THE THORIUM-BEARING VEINS, LEMHI PASS QUADRANGLE, IDAHO AND MONTANA: USGS BULL. 1351, 94 P.

  • Deposit

    ANDERSON, A.L., 1961, GEOLOGY AND MINERAL RESOURCES OF THE LEMHI QUADRANGLE, LEMHI COUNTY, IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 124, 107 P.

  • Deposit

    ANDERSON, A. L., 1958, URANIUM, THORIUM, COLUMBIUM, AND RARE EARTH DEPOSITS IN THE SALMON REGION, LEMHI COUNTY, IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY PAMPH 115, 81 P.

  • Deposit

    1958 RECON IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 115

  • Deposit

    1961 RECON IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 124

  • Deposit

    1972 GEOLMAP STAATZ, M. H., BULL. 1351

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1975 Siefken, Robert R. (Miller, Pat) U.S. Geological Survey

Beyond USGS

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