Big Dean No. 1 Prospect

Occurrence in Lemhi county in Idaho, United States with commodity Thorium
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. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Land status
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10072035
MRDS ID W015851
Record type Site
Current site name Big Dean No. 1 Prospect
Related records 10169322

Geographic coordinates

Geographic coordinates: -113.4631, 44.98549 (WGS84)
Elevation 2195
Relative position 9 MI ENE OF TENDOY

Site location context

Political divisions (FIPS codes)

Lemhi(county)

Idaho(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

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 019N 025E 10 Idaho

Commodities

Commodity Importance
Thorium Tertiary

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
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -113.4631, 44.98549

Economic information

Ore body information

  • Thickness 0.15M
    Length 30.48M

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Lemhi Pass Area

Land status

Ownership category National Forest
Area name Salmon National Forest

Reference information

Bibliographic references

  • Deposit

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

  • Deposit

    1972 GEOLMAP STAATZ, M. H., BULL 135

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1976 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.