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City of Rocks Uranium Deposit

Occurrence in Cassia county in Idaho, United States with commodities Uranium, Thorium, REE
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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. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10070308
MRDS ID W013147
Record type Site
Current site name City of Rocks Uranium Deposit

Geographic coordinates

Geographic coordinates: -113.71139, 42.07361 (WGS84)
Elevation 1890
Relative position 4 1/2 MI. SW. OF ALMO

Site location context

Political divisions (FIPS codes)

Cassia(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Almo(quadrangle 1:24,000 scale)

Oakley(quadrangle 1:100,000 scale)

Pocatello(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Raft(hydrologic unit)

Upper Snake(hydrologic accounting unit)

Upper Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

City of Rocks National Reserve(National Reserve)

National Reserve NPS(Type of land area)

NPS(Federal land areas administered by NPS)

Geographic areas

Country State County
United States Idaho Cassia

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 015S 023E 36 Idaho

Commodities

Commodity Importance
Uranium Primary
Thorium Primary
REE Critical Primary

Materials information

Materials Type of material
Magnetite Ore

Analytical data

Result AVERAGE U3O8 EQUIVALENT = 0.03%

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Cassia Batholith-Granodiorite;Pegmatite
    Rock description Cassia Batholith-Granodiorite;Pegmatite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite

Nearby scientific data

(1) -113.71139, 42.07361
ListMap

Economic information

Ore body information

  • General form TABULAR
    Strike N
    Dip E
    Width 1.83M

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Almo Area

Land status

Ownership category State

Comments on the workings information

  • PLACER 20 FT THICK

Comments on development

  • ECON.COM: OCCURRENCE OF MINERALOGIC, RATHER THAN ECONOMIC, IMPORTANCE

Reference information

Bibliographic references

  • Deposit

    ARMSTRONG, F. C., 1964, MINERAL RESOURCES - URANIUM, IN MINERAL AND WATER RESOURCES OF IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY SPECIAL REPT. NO. 1, P. 238.

  • Deposit

    POWERS, H.A., 1955, URANIUM: IDAHO BUREAU OF MINES AND GEOLOGY OPEN - FILE REPORT

  • Deposit

    1955 RECON ID. BUREAU OF MINES & GEOL. - OPEN FILE REPORT

Reporter information

Type Date Name Affiliation Comment
Reporter 1976-07-01 Matthews, John Y.; Miller, Pat U.S. Geological Survey

Beyond USGS

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

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