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Custer Grog Pit

Occurrence in Amador county in California, United States with commodity Silica
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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. Land status
  11. Ownership information
  12. Links to other databases
  13. Bibliographic references
  14. Reporter information

Geologic information

Identification information

Deposit ID 10028083
MRDS ID M004884
Record type Site
Current site name Custer Grog Pit
Related records 10260121

Geographic coordinates

Geographic coordinates: -120.91602, 38.34129 (WGS84)

Site location context

Political divisions (FIPS codes)

Amador(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Ione(quadrangle 1:24,000 scale)

San Andreas(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Amador

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 006N 010E 30 California

Commodities

Commodity Importance
Silica Primary

Materials information

Materials Type of material
Sand Ore

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Western Refractories Co.

Comments on the production information

  • PIT BEING WORKED IN 1953 WAS BEGUN ABOUT 1944 BUT ADJACENT PITS IN THE SAME BED ARE MUCH OLDER. MATERIAL IS HAULED TO WESTERN REFRACTORIES CO. PLANT IN IONE WHERE IT IS CRUSHED AND USED AS A GROG WITH REFRACTORY CLAY. THE PORTION OF THE BED THAT IS BEING MINED IS OVER 20 FT. THICK AND LIES UNDER 10-12 FEET OF OVERBURDEN. MAY BE THE CLAY PIT SHOWN IN THE S 1/2 SE 1/4 ON USGS QUAD. SUTTER CREEK, CALIF., 1957

Comments on the workings information

  • OPEN PIT

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOL. V. 50, NO. 1, JAN. 1954, P.226-7, 285, PL.1

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.