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Keystone

Past Producer in San Bernardino county in California, United States with commodities Gold, Silver, Tungsten
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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. Production statistics
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10086497
MRDS ID X024725
Record type Site
Current site name Keystone
Related records 10115625

Geographic coordinates

Geographic coordinates: -117.11781, 34.69195 (WGS84)
Elevation 1173
Relative position 0.5 MI. S. SUMMIT OF STODDARD MTN.

Site location context

Political divisions (FIPS codes)

San Bernardino(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Stoddard Well(quadrangle 1:24,000 scale)

Victorville(quadrangle 1:100,000 scale)

San Bernardino(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Mojave(hydrologic unit)

Northern Mojave(hydrologic accounting unit)

Northern Mojave-Mono Lake(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California San Bernardino

Public Land Survey System information

Meridian Township Range Section Fraction State
San Bernardino 007N 002W 18,17 California

Comments on the location information

  • UTM ACC E 1/2 NE 1/4 SE 1/4 SE 1/4 18

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Tungsten Critical Tertiary

Materials information

Materials Type of material
Gold Ore

Analytical data

Result ASSAYS AS HIGH AS $800/TON REPORTED, BUT MOST ORE SAID TO RUN ABOUT $50/TON

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock

Nearby scientific data

(1) -117.11781, 34.69195
ListMap

Economic information

Ore body information

  • Strike N
    Dip 90
    Thickness 0.3M

Comments on the geologic information

  • SLICKENSIDES AND SEVERAL THIN GANGUE ZONES PARALLEL THE VEINS

Economic information about the deposit and operations

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

Production statistics

  • Year 1947
    Material ORE
    Accuracy Estimate
    Description Ap_Grade: ^2.4 Oz. Au/Ton
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Gold Gold 68g/mt

Comments on the production information

  • NO OTHER PRODUCTION RECORD FOUND

Comments on the workings information

  • 9 ADITS, NUMEROUS TRENCHES AND PITS

Reference information

Bibliographic references

  • Deposit

    SOUTHERN PACIFIC COMPANY, 1964, MINERALS FOR INDUSTRY, SOUTHERN CALIFORNIA, V. 3, P. 48

  • Deposit

    WRIGHT, L.A., AND OTHERS, 1953, MINES AND MINERAL DEPOSITS OF SAN BERNARDINO COUNTY, CALIF., CALIF. JOUR. MINES & GEOLOGY, V. 49, NOS. 1 & 2, P. 75

  • Production

    SOUTHERN PACIFIC CO. (1964)

General comments

Subject category Comment text
Deposit PARALLEL AND INTERSECTING VUGGY VEINS, 3-12 IN THICK
Deposit 2 CLAIMS. LAST OPERATED IN 1947 ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1979 Nelson, Scott C. (Albers, John, P.) 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

Authoritative California resources

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