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  3. Mineral Resource Data System (MRDS)

Forked Pine Claim, Marsh Flats Chrome Assoc. Properties

Occurrence in Tuolumne 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. Host and associated rocks
  9. Nearby scientific data
  10. Economic information about the deposit and operations
  11. Mining district
  12. Land status
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. Reporter information

Geologic information

Identification information

Deposit ID 10043701
MRDS ID M100604
Record type Site
Current site name Forked Pine Claim, Marsh Flats Chrome Assoc. Properties

Geographic coordinates

Geographic coordinates: -120.35683, 37.80242 (WGS84)
Elevation 396
Location accuracy 1000(meters)
Relative position Assumed Spot Center Of Se, Sect, 31

Site location context

Political divisions (FIPS codes)

Tuolumne(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Moccasin(quadrangle 1:24,000 scale)

Oakdale(quadrangle 1:100,000 scale)

San Jose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Tuolumne(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 Tuolumne

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 001S 015E 31 SE California

Comments on the location information

  • ABOUT 0.5 MILE SE OF MUM CLAIM (M100197), SLIGHTLY NE OF THE CREST OF THE RIDGE.

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore
Talc Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite > Dunite
    Stratigraphic age (youngest) Late Jurassic

Nearby scientific data

(1) -120.35683, 37.80242
ListMap

Economic information

Comments on the geologic information

  • THE DEPOSIT OCCURS IN THE SOUTHERN PART OF THE WESTERN MOST OF TWO SERPENTINE BELTS THAT TREND NW-SE ACROSS THE COUNTY. THE BELT IS EXPOSED ORE AN AREA 30 KM BY 6 KM.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Marsh'S Flat Area

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner J. L. Whitney Estate

Comments on the workings information

  • WORKINGS CONSISTED OF TWO OPEN CUTS.

Comments on development

  • APPROX. 20 LT ORE MINED DURING 1918 REMAINS ON DUMPS.

Reference information

Bibliographic references

  • Deposit

    CATER, F.W. JR., 1948, CDMG BULL 134, PART 3, CHAPT. 1, P. 17

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-82 Oster, Karel L. (Albers, John P.) 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.