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Yosemite Pits Harvey Pits

Occurrence in Amador county in California, United States with commodity Clay
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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. Ownership information
  10. Links to other databases
  11. Bibliographic references
  12. Reporter information

Geologic information

Identification information

Deposit ID 10028054
MRDS ID M004824
Record type Site
Current site name Yosemite Pits Harvey Pits

Geographic coordinates

Geographic coordinates: -120.01433, 38.41852 (WGS84)

Site location context

Political divisions (FIPS codes)

Tuolumne(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Tamarack(quadrangle 1:24,000 scale)

San Andreas(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Stanislaus(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Federal lands

Stanislaus National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States California Amador

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 07N 09E 29 California

Commodities

Commodity Importance
Clay Primary

Nearby scientific data

(1) -120.01433, 38.41852
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Non-metallic
Significant No

Ownership information

  • Type Operator
    Owner Western Refractories Co.

Comments on the production information

  • THE YOSEMITE CLAY IS USED PRIMARILY IN THE REFRACTORIES AT THE WESTERN REFRACTORIES CO. PLANT IN IONE. THE YOSEMITE NO. 1 CLAY IS IN BEDS 8-9 FEET THICK; THE YOSEMITE NO. 2 CLAY, 6-10 FEET THICK, IS MORE SANDY AND HAS LOWER REFRACTORY QUALITIES THAN NO. 1. ABOVE THE YOSEMITE CLAY IS 5-5 1/2 FT. OF REDDISH BROWN GRAVELLY SOIL AND BELOW IS CARBONACEOUS CLAY AND LIGNITE AND THEN MORE CLAY. THE CLAY BEDS GRADUALLY THIN TO THE NORTH

Comments on the workings information

  • THREE LARGE SHALLOW PITS; ONLY TWO OF WHICH WERE ACTIVE IN 1953

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOL. V. 50, NO. 1, JAN. 1954, P.225-6, 284, PL.

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.