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  3. Mineral Resource Data System (MRDS)

San Pedro Claim

Occurrence in Contra Costa county in California, United States with commodities Gold, Silver
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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. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Links to other databases
  10. Bibliographic references
  11. Reporter information

Geologic information

Identification information

Deposit ID 10029570
MRDS ID M007207
Record type Site
Current site name San Pedro Claim
Related records 10284185

Geographic coordinates

Geographic coordinates: -121.93504, 37.9069 (WGS84)
Relative position SE1/4 NE1/4

Site location context

Political divisions (FIPS codes)

Contra Costa(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Clayton(quadrangle 1:24,000 scale)

Stockton(quadrangle 1:100,000 scale)

San Jose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Suisun Bay(hydrologic unit)

San Francisco Bay(hydrologic accounting unit)

San Francisco Bay(hydrologic subregion)

California(hydrologic region)

Federal lands

ST(Federal land areas administered by ST)

Geographic areas

Country State County
United States California Contra Costa

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 001N 001W 26 SE1/4NE1/4 California

Comments on the location information

  • Used PLS and GIS to determine Lat/long.

Commodities

Commodity Importance
Gold Primary
Silver Primary

Nearby scientific data

(1) -121.93504, 37.9069
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: COPPER AND IRON OXIDE MINERALS IN BRECCIATED DIABASE. SOME ASSAYS OF $40-$45 PER TON AU + AG.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Comments on the production information

  • 30 TONS OF ORE, 40% SULFIDES, MINED IN WINZE AND MILLED AT NORTH BEACH, SAN FRANCISCO.

Comments on the workings information

  • MINERALIZED ZONE EXPLORED BY 80' OF DRIFTS AND CROSSCUTS AND A 22' WINZE.

Reference information

Bibliographic references

  • Deposit

    Pampeyan, E.H., 1963, Geology and Mineral deposits of Mount Diablo, Contra Costa County, California: CALIF. Special REPT. 80, P. 21

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1972 Gere, W. 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.