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Los Osos Mine

Past Producer in San Luis Obispo county in California, United States with commodities Copper, Gold, Sand and Gravel, Construction
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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. Workings at the site
  10. Links to other databases
  11. Bibliographic references
  12. Reporter information

Geologic information

Identification information

Deposit ID 10077399
MRDS ID W025011
Record type Site
Current site name Los Osos Mine
Related records 10213368

Geographic coordinates

Geographic coordinates: -120.78404, 35.28497 (WGS84)
Elevation 183

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 South(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)

Geographic areas

Country State County
United States California San Luis Obispo

Public Land Survey System information

Meridian Township Range Section Fraction State
030S 011E 27 California

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Sand and Gravel, Construction Secondary

Nearby scientific data

(1) -120.78404, 35.28497
ListMap

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Significant No
Production years 1860'S (?)

Workings at the site

  • Type of workings Underground
    Overall depth 70.1M

Comments on the workings information

  • SHAFT 230 FT. DEEP, LOWER TUNNEL 235 FT. LONG, ANOTHER TUNNEL, LENGTH NOT KNOWN.

Reference information

Bibliographic references

  • Deposit

    ERIC, J.H., 1948 : COPPER IN CALIFORNIA BULL. 144 ; DIV. OF MINES, P. 321

  • 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. 417

  • Deposit

    LAIZURE, C. MCK., 1925 ; SAN FRANCISCO FIELD DIV.; 21ST REPT. STATE MIN.; CALIF. MIN. BUR., P. 511 .

  • Production

    FRANKE, H.A., 1935

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1981 Unknown 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.