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Perconi Ranch Deposits

Past Producer 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. Ore body information
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10077878
MRDS ID W025945
Record type Site
Current site name Perconi Ranch Deposits
Related records 10190293

Geographic coordinates

Geographic coordinates: -120.46544, 37.87909 (WGS84)
Elevation 61
Relative position APPROX. 2 MI. W OF CHINESE CAMP, CA.

Site location context

Political divisions (FIPS codes)

Tuolumne(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Sonora(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)

Geographic areas

Country State County
United States California Tuolumne

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 001S 014E 05 California

Comments on the location information

  • PREVIOUS QUAD DESIGNATION = SAN JOSE 1:250000

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Analytical data

Result ORE AVERAGED 32 % CR2O3

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite
    Stratigraphic age (youngest) Late Jurassic

Nearby scientific data

(1) -120.46544, 37.87909
ListMap

Economic information

Ore body information

  • General form POD
  • General form POD

Comments on the geologic information

  • THE DEPOSIT OCCURS IN THE NORTHERN PART OF THE WESTERNMOST OF TWO SERPENTINE BELTS THAT TREND NW-SE ACROSS THE COUNTY. THE BELT IS EXPOSED OVER AN AREA 30KM BY 6KM.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Chinese Camp Area

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner O. Malone And G. H. Rowe (Wwi)
  • Type Owner
    Owner Perconi

Comments on the workings information

  • WORKINGS CONSISTED OF SEVERAL SHALLOW PITS AND CUTS 1918.

Comments on development

  • ORE WAS MINED BUT NOT SHIPPED.

Reference information

Bibliographic references

  • Deposit

    CATER,F.W.JR., 1948, CDMG BULL 134, PART 3, CHAPT.1,P.19,20

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1982 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.

External references

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.