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Walker Mine

Producer in Calaveras 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. Mining district
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10028797
MRDS ID M005999
Record type Site
Current site name Walker Mine
Alternate or previous names Chaparral, Brushy Hill
Related records 10283932

Geographic coordinates

Geographic coordinates: -120.64379, 38.02352 (WGS84)
Relative position NEAR CTR. OF E1/2 OF SEC.; NEAR THE HEAD OF A GULCH TRIBUTARY TO BLACK CREEK. CR SYMBOL IN SE1/4 SE1/4 ALSO ON GQ-222 & GP-561

Site location context

Political divisions (FIPS codes)

Calaveras(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Salt Spring Valley(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)

Geographic areas

Country State County
United States California Calaveras

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 002N 012E 15 California

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Nearby scientific data

(1) -120.64379, 38.02352
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: IN HIGHLY SHEARED SERPENTINE NEAR THE W CONTACT OF THE SERPENTINE WITH GRANODIORITE; MAXIMUM THICKNESS OF THEMASSIVE ORE WAS 2'; SMALL AMOUNT OF DISSEMINATED ORE ALSO PRESENT. TO THE WEST OF THE DEPOSIT THE SERPENTINE CONTAINS SOME ASBESTOS.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No

Mining district

District name Black Creek Area

Comments on the production information

  • 71 LONG TONS 40% CHROMIC OXIDE; RESERVES PROBABLY NEGLIGIBLE. WORKINGS CONSIST OF 3 OPEN CUTS, 3 PARTLY CAVED SHAFTS AND 2 SHORT DRIFTS

Reference information

Bibliographic references

  • Deposit

    CALIF. B. 134, PT. III, CH. 2,P. 47 AND PL. 5; B. 76, P. 123

  • Deposit

    CALIF. COUNTY REPT. NO. 2, P. 22, 130 AND PL. D

  • Deposit

    USGS MAP GQ-222

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.