City of Rocks Mine

Past Producer in Cassia county in Idaho, United States with commodities Feldspar, Uranium, Beryllium, 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. 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 10070320
MRDS ID W013172
MAS/MILS ID 0160310088
Record type Site
Current site name City of Rocks Mine

Geographic coordinates

Geographic coordinates: -113.73557, 42.04741 (WGS84)
Elevation 1951
Relative position 6 MI. S.W. 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 016S 023E 14 Idaho

Commodities

Commodity Importance
Feldspar Primary
Uranium Primary
Beryllium Critical Tertiary
Thorium Tertiary

Materials information

Materials Type of material
Pegmatite Ore
Garnet Gangue
Muscovite Gangue
Plagioclase Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Cassia Batholith-Granite
    Rock description Cassia Batholith-Granite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -113.73557, 42.04741

Economic information

Ore body information

  • Strike N 55 DEG W
    Dip 80 DEG W
    Length 152.4M
    Width 91.44M

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Both
Deposit size Small
Significant No

Mining district

District name Almo Area

Land status

Ownership category Private

Reference information

Bibliographic references

  • Deposit

    Lesure, F. G., 1964, Mica And Associated Pegmatite Minerals, In Mineral And Water Resources Of Idaho: Idaho Bureau Of Mines And Geology Special Rept. No. 1, P. 129.

  • Deposit

    Minobras, 1975, Idaho Industrial Minerals, P. 30.

  • Deposit

    Fryklund, V. C., Jr., 1951, A Reconnaissance Of Some Idaho Feldspar Deposits: Idaho Bureau Of Mines And Geology Pamphlet 91, P. 16.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1976 Matthews, John Y.; Miller, Pat U.S. Geological Survey
Reporter 30-JAN-1995 Western Field Operations Center (WFOC) U.S. Bureau of Mines

Beyond USGS

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