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  3. Mineral Resource Data System (MRDS)

O'Connor Ranch Mine

Past Producer in San Luis Obispo county in California, United States with commodity 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. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Mineral rights holdings
  10. Land status
  11. Ownership information
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10189283
MRDS ID M020164
MAS/MILS ID 0060790018
Record type Site
Current site name O'Connor Ranch Mine
Alternate or previous names Mt. Bishop Mine
Related records 10109389

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -120.72457, 35.29857 (WGS84)
Elevation 61
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

San Luis Obispo(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

San Luis Obispo(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
Mount Diablo 030 S 012 E 19 SE California

Comments on the location information

  • ALSO IN SW/4 SEC. 20.

Commodities

Commodity Importance
Manganese Critical Tertiary

Nearby scientific data

Main Entrance (1) Franciscan Complex, unit 1 (Coast Ranges)
ListMap

Economic information

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Discovery year 1917

Mineral rights holdings

Type of mineral rights Unknown
Type of mineral rights Private Lease

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Mrs Mary Fischer
    Year 1974
  • Type Operator
    Owner Charles Naslund
    Home office California
    Year 1974

Reference information

Bibliographic references

  • Deposit

    CALIF. DIV. MINES BULLETIN 152, 1950, P. 235-236.

  • Deposit

    U.S. BUREAU OF MINES RI 5579, 1960, P. 45.

Reporter information

Type Date Name Affiliation Comment
Reporter 18-AUG-1992 Ridenour, James U.S. Bureau of Mines

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.