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  3. Mineral Resource Data System (MRDS)

Keystone Mine

Past Producer in Yuma county in Arizona, United States with commodities Silver, Manganese
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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 10102435
MRDS ID M001948
Record type Site
Current site name Keystone Mine
Related records 10235061

Geographic coordinates

Geographic coordinates: -114.01856, 33.04424 (WGS84)
Elevation 427
Relative position SOUTHEASTERN PORTION OF THE CASTLE DOME MTN.

Site location context

Political divisions (FIPS codes)

Yuma(county)

Arizona(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Slumgullion Pass(quadrangle 1:24,000 scale)

Trigo Mountains(quadrangle 1:100,000 scale)

Salton Sea(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Gila(hydrologic unit)

Lower Gila(hydrologic accounting unit)

Lower Gila(hydrologic subregion)

Lower Colorado(hydrologic region)

Federal lands

FWS(Federal land areas administered by FWS)

Geographic areas

Country State County
United States Arizona Yuma

Public Land Survey System information

Meridian Township Range Section Fraction State
Gila and Salt River 004S 017W 28,33 Arizona

Commodities

Commodity Importance
Silver Primary
Manganese Critical Tertiary

Materials information

Materials Type of material
Silver Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -114.01856, 33.04424
ListMap

Economic information

Ore body information

  • General form LINEAR
    Strike N 15 W
    Dip 56 W
    Length 228.6M
    Width 336.19M

Comments on the geologic information

  • THE VEIN HAS BEEN PROSPECTED BY A FEW SHALLOW WORKINGS WHICH REVEALED POCKETS OF RICH SILVER ORE CLOSE TO THE SURFACE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Castle Dome District

Land status

Ownership category Federal
Area name Kofa Game Range

Comments on the production information

  • NO PRODUCTION RECORD

Comments on the workings information

  • WORKINGS CONSIST OF A FEW SHALLOW WORKING

Reference information

Bibliographic references

  • Deposit

    WILSON, E.D., 1933, GEOLOGY AND MINERAL DEPOSITS OF SOUTHERN YUMA COUNTY, ARIZONA: ARIZONA BUREAU OF MINES BULLETIN 134, P. 104

  • Other Database

    CIMRI

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-1972 Gere, W. U.S. Geological Survey
Updater 01-OCT-1979 Hall, R. K. (Creasey, S. C.) U.S. Geological Survey

Beyond USGS

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

External references

Maps centered on this site

Authoritative Arizona resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.