1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Late Property

Producer in Calaveras county in California, United States with commodity Chromium
Map
XML
JSON
KML
C
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 10029232
MRDS ID M006656
Record type Site
Current site name Late Property

Geographic coordinates

Geographic coordinates: -120.53351, 38.31158 (WGS84)
Relative position ON BROAD DIVIDE BETWEEN NORTH FK. CALAVERAS RIVER AND ESPERANZA CREEK AT ELEV. 2800'.

Site location context

Political divisions (FIPS codes)

Calaveras(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Rail Road Flat(quadrangle 1:24,000 scale)

San Andreas(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Calaveras(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management CA)

Bureau of Land Management CA BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States California Calaveras

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 005N 013E 03 California

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Economic information

Comments on the geologic information

  • GEOL.DESC: CHROMITE FLOAT DUG FROM SOIL 18-40" DEEP OVERLYING HIGHLY TALCOSE, SCHISTOSE SERPENTINE; NO ORE FOUND IN PLACE; PIECES OF CHROMITE AVERAGED ABOUT 3" IN DIAMETER. ORE WAS HIGH GRADE, CHROMIC OXIDE CONTENT 49.6%.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No

Mining district

District name Railroad Flat Area

Comments on the production information

  • 45 TONS OF CHROMITE FLOAT DUG. OPERATED DURING WWI; IDLE SINCE 1918.

Comments on the workings information

  • WORKINGS COVERED AN AREA OF SEVERAL THOUSAND SQ. FT.

Reference information

Bibliographic references

  • Deposit

    CALIF. B. 134, PT. III, CH. 2, P. 57-58 AND 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.