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San Ramon

Past Producer in San Luis Obispo county in California, United States with commodities Copper, 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. Host and associated rocks
  8. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Land status
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10034256
MRDS ID M020997
Record type Site
Current site name San Ramon
Related records 10141060

Geographic coordinates

Geographic coordinates: -120.7857, 35.43191 (WGS84)
Elevation 457
Relative position MORRO AND TORO CREEKS, 5 MILES NE OF MORRO ROCK.

Site location context

Political divisions (FIPS codes)

San Luis Obispo(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Morro Bay North(quadrangle 1:24,000 scale)

San Luis Obispo(quadrangle 1:100,000 scale)

San Luis Obispo(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Central Coastal(hydrologic unit)

Central California Coastal(hydrologic accounting unit)

Central California Coastal(hydrologic subregion)

California(hydrologic region)

Federal lands

Los Padres National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States California San Luis Obispo

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 029S 011E 03 California

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Silver Secondary

Analytical data

Result $3.60 AU, 38? AG

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone

Economic information

Ore body information

  • Thickness 3.35M

Comments on the geologic information

  • GEOL.DESC: SANDSTONE, HANGING WALL, PORPHYRY FOOTWALL CLAIMS LIE IN A SERPENTINE BELT.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years 1860'S

Land status

Ownership category National Forest

Comments on the production information

  • SOME PRODUCTION IN 1860'S

Comments on the workings information

  • ADIT 140 FT.; SHAFT 50 FT.

Reference information

Bibliographic references

  • Deposit

    ERIC, J. H., 1948 ; COPPER IN CALIFORNIA BULL. 144 ; DIV. OF MINES, P. 322

  • Deposit

    FRANKE, H. A., 1935 ; MINES AND MINERAL RESOURCES OF SAN LUIS OBISPO COUNTY; CALIF. JOUR. MINES AND GEOLOGY, VOL. 31 , NO. 4 ; DIV. OF MINES, P. 418

  • Production

    ERIC, J. H., 1948

General comments

Subject category Comment text
Deposit VEIN 5 - 11 FT.
Deposit NO OTHER INFORMATION AVAILABLE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1979 Fraticelli, L. A. (Albers, J.) 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.