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  3. Mineral Resource Data System (MRDS)

Last Chance Prospect

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

Geologic information

Identification information

Deposit ID 10096395
MRDS ID W015738
Record type Site
Current site name Last Chance Prospect
Alternate or previous names Fishcan

Geographic coordinates

Geographic coordinates: -113.6117, 44.8947 (WGS84)
Elevation 1585
Relative position 2.5 MI N OF LEMHI

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 018N 024E 16 Idaho

Comments on the location information

  • ON E SIDE OF LEMHI R VALLEY

Commodities

Commodity Importance
Copper Primary
Uranium Primary
Thorium Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Malachite Ore
Hematite Gangue
Limonite Gangue
Quartz Gangue

Analytical data

Result 1 SAMPLE FROM LAST CHANCE VEIN HAD 0.006 % U, 0.03 % THO3, AND 0.008 % EU

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) -113.6117, 44.8947
ListMap

Economic information

Ore body information

  • Width 0.09M

Comments on the geologic information

  • QUARTZITE BEDDING STRIKES N 50 DEG W WITH A DIP OF 18-20 DEG SW

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 R. Stenson, G. E. Shoup

Workings at the site

  • Type of workings Underground
    Length 62.48M

Comments on the workings information

  • 2 ADITS, 1 CAVED SHAFT

Reference information

Bibliographic references

  • Deposit

    SHARP, W. N., AND CAVENDER, W. S., 1962, GEOLOGY AND THORIUM-BEARING DEPOSITS OF THE LEMHI PASS AREA, LEMHI COUNTY, IDAHO, AND BEAVERHEAD COUNTY, MONTANA: USGS BULL. 1126, P. 55

  • Deposit

    1962 RECON W. N. SHARP AND W. S. CAVENDAR, BULL 112

Reporter information

Type Date Name Affiliation Comment
Reporter 1976-08-01 Miller, Pat J. U.S. Geological Survey

Beyond USGS

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

Maps centered on this site