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Parker Ranch Chromite Deposit

Past Producer in Placer 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. Production statistics
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10043718
MRDS ID M100629
Record type Site
Current site name Parker Ranch Chromite Deposit
Alternate or previous names Meadowbrook Ranch, Mcnear Property, Auburn Chrome Mine

Geographic coordinates

Geographic coordinates: -121.10159, 38.97933 (WGS84)
Elevation 431
Relative position APPROX. 5.8 MILES N-NW OF AUBURN, CA.

Site location context

Political divisions (FIPS codes)

Placer(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Auburn(quadrangle 1:24,000 scale)

Sacramento(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Placer

Public Land Survey System information

Meridian Township Range Section Fraction State
013N 008E 17 California

Comments on the location information

  • DEPOSIT LOCATED IN A SHALLOW GULLEY ON THE NORTH SIDE OF A KNOLL.

Commodities

Commodity Importance
Chromium Critical Primary

Comments on the commodity information

  • ANALYSIS OF ORE MILLED DURING W.W. II

Materials information

Materials Type of material
Chromite Ore

Analytical data

Result 43.93% CR2O3
Result 19.7% FE
Result CR TO FE RATIO 1.53 TO 1

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite

Nearby scientific data

(1) -121.10159, 38.97933
ListMap

Economic information

Ore body information

  • General form LENSE
    Strike N-S
    Dip 80 E
    Thickness 6M
    Length 45M
    Width 15M

Comments on the geologic information

  • DEPOSIT NEAR THE NORTH END OF A N-S TRENDING IRREGULARLY SHAPED PERIDOTITE BODY THAT IS EXPOSED OVER AN AREA 2.5 MILES BY 1 MILE AND IS BORDERED BY PRE-CRETACEOUS METAVOLCANICS.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of last production 1944

Mining district

District name Dry Creek Area

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner C. C. Butler, J. C. Wold (World War Ii)
  • Type Owner
    Owner Oest, C. H.
    Home office S2 4s Grass Valley Highway, Auburn, Ca. 95603

Production statistics

  • Year 1919
    Period World War I
    Material CON CR
    Accuracy Accurate
    Description Cp_Grade: ^39-40% Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Cr2O3 Chromium Chromium 40wt-pct
  • Year 1944
    Period 1918-1944
    Material CON CR
    Accuracy Estimate
    Description Cp_Grade: ^ 19.70% Fe
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Iron Iron 20wt-pct
  • Year 1945
    Period World War Ii
    Material CON CR
    Accuracy Accurate
    Description Cp_Grade: ^43.93% Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Cr2O3 Chromium Chromium 44wt-pct

Comments on the workings information

  • WORKINGS CONSISTED OF TWO LARGE PITS AND SEVERAL SMALLER CUTS. TWO TUNNELS AND A SHAFT ARE CAVED. (1975)

Reference information

Bibliographic references

  • Deposit

    STINSON, M.C., 1975, CDMG MINERAL PROPERTY REPORT, UNPUBLISHED

  • Deposit

    RYNEARSON, G.A., 1953, CDMG BULL 134, PT. 3, CHAPT. 5., P. 230-232.

  • Production

    CDMG BULL 134, PT. 3, CHAPT. 5, P. 231

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1983 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.