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  3. Mineral Resource Data System (MRDS)

Pilot Hill

Occurrence in El Dorado county in California, United States with commodity Chromium
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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. Materials information
  8. Nearby scientific data
  9. Economic information about the deposit and operations
  10. Ownership information
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10029637
MRDS ID M007310
Record type Site
Current site name Pilot Hill

Geographic coordinates

Geographic coordinates: -121.03075, 38.81711 (WGS84)
Relative position NE1/4. NR. CTR. OF SEC. A FEW HUNDRED FT. W OF PILOT HILL SUMMIT.

Site location context

Political divisions (FIPS codes)

El Dorado(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Pilot Hill(quadrangle 1:24,000 scale)

Sacramento(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

North Fork American(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California El Dorado

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 011N 008E 12 California

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Ownership information

  • Type Operator
    Owner W. J. Rogers

Comments on the production information

  • UNION CHROME CO. OPERATED THE MINE IN 1916 AND SHIPPED ABOUT 200 LONG TONS OF THE ORE. APPARENTLY THE MINE HAS BEEN IDLE SINCE AND ONLY A FEW TONS OF LOW-GRADE ORE REMAINS IN THE MINE AND ON THE DUMPS.

Comments on the workings information

  • OPEN CUT, DRIFT.

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOL. V. 52, NO. 4, P. 473

  • Deposit

    DOM BULL. 134, PT. 3, CHAP 4, P. 154 AND PL. 8

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.