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Mayfield Prospect

Occurrence 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. Links to other databases
  10. Bibliographic references
  11. Reporter information

Geologic information

Identification information

Deposit ID 10033563
MRDS ID M020160
Record type Site
Current site name Mayfield Prospect
Related records 10213566

Geographic coordinates

Geographic coordinates: -120.95681, 35.61079 (WGS84)
Elevation 838
Relative position JUST W. OF THE SUMMIT OF THE SANTA LUCIA RANGE. 19 MI. BY ROAD AND TRAIL N. 80 E. FROM CAMBRIA, 45 MI. TOTAL DISTANCE FROM SAN LUIS OBISPO ON THE SOUTHERN PACIFIC RAILROAD.

Site location context

Political divisions (FIPS codes)

San Luis Obispo(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Cypress Mountain(quadrangle 1:24,000 scale)

Paso Robles(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 027S 009E 01 California

Commodities

Commodity Importance
Manganese Critical Tertiary

Analytical data

Result ASSAY 49.3 PERCENT MANGANESE, 18.7 PERCENT INSOLUBLE.

Nearby scientific data

(1) -120.95681, 35.61079
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: SMALL AMOUNT OF OXIDIZED MANGANESE ORE IS ASSOCIATED WITH SMALL JASPER BLOCK INCLUDED IN GREENSTONE. ORE VARIES FROM VERY SILICEOUS BLACK FLINTY MATERIAL TO HIGH GRADE ORE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Reference information

Bibliographic references

  • Deposit

    D.O.M. BULL. 152 1950 P. 234

  • Deposit

    D.O.M. BULL. 125 1943 P. 170

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1978 Killman, K.; 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.