Beaverhead Prospect

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

Geologic information

Identification information

Deposit ID 10071954
MRDS ID W015743
MAS/MILS ID 0160590778
Record type Site
Current site name Beaverhead Prospect

Geographic coordinates

Geographic coordinates: -113.4692, 44.94659 (WGS84)
Elevation 2286
Relative position 10.25 MI NE OF LEMHI

Site location context

Political divisions (FIPS codes)

Beaverhead(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Lemhi Pass(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

Beaverhead-Deerlodge 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 019N 025E 27 SESWNE Idaho

Comments on the location information

  • On Continental Divide Less Than Midway Between Wonder Lode No. 18 And The Cago Group; Close To W Side Of Dandy Group.

Commodities

Commodity Importance
Thorium Primary
REE Critical Tertiary

Comments on the commodity information

  • Veins Are Highly Radioactive

Materials information

Materials Type of material
Monazite Ore
Thorite Ore
Apatite Gangue
Barite Gangue
Feldspar Gangue
Quartz Gangue
Specularite Gangue

Alteration

  • (Local) Silicification

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Belt Supergroup
    Rock description Belt Supergroup-Quartzite, Phyllite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Phyllite

Nearby scientific data

(1) Challis Volcanic Group.

Economic information

Ore body information

  • General form IRREGULAR, SPORADIC DISTRIBUTION
    Thickness 0.61M

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Mcdevitt District

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Owner
    Owner D. B. Lewis

Reference information

Bibliographic references

  • 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 Pamphlet 115, 81 P

  • Deposit

    1958 Recon Idaho Bureau Of Mines And Geology Pamphlet 11

  • Deposit

    Earth Deposits In The Salmon Region, Lemhi County, Idaho: Idaho Bureau Of Mines And Geol. Pamphlet 115, P. 72.

  • Deposit

    Bearing Veins, Lemhi Pass Quadrangle, Idaho And Montana: U.S. Geological Survey Bulletin 1351, Table 2, No. 64, P. 46; Plate 1. Note: This Reference Shows The Prospect In Montana (See 0300010131).

General comments

Subject category Comment text
Deposit Several Small Veins

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1974 Miller, Pat J. U.S. Geological Survey
Reporter 29-OCT-1997 Ridenour, James U.S. Bureau of Mines

Beyond USGS

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