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Park's Ranch Mine

Past Producer in Butte county in California, United States with commodity Chromium
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Geologic information

Identification information

Deposit ID 10043711
MRDS ID M100620
Record type Site
Current site name Park's Ranch Mine
Alternate or previous names Lime Saddle, Iron Point, Curtis Mine

Geographic coordinates

Geographic coordinates: -121.56662, 39.69099 (WGS84)
Elevation 335
Relative position APPROX 4 MI SSE OF PARADISE, CA, IN THE LAKE OROVILLE STATE RECREATION AREA.
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Geographic areas

Country State County
United States California Butte

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 021N 004E 07 S2 OF NE California

Commodities

Commodity Importance
Chromium Primary

Materials information

Materials Type of material
Chromite Ore
Chrysotile Gangue

Alteration

  • (Local) Serpentinization Of Peridotite

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite

Nearby scientific data

(1) -121.56662, 39.69099
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Ore body information

  • General form PODS, LENSES

Comments on the geologic information

  • DEPOSIT LOCATED IN AN ELONGATED PERIDOTITE MASS, 200-300 FT WIDE, WHICH IS IN VERTICAL CONTACT WITH AMPHIBOLITE SCHIST.

Economic information

Economic information about the deposit and operations

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

Mining district

District name Yankee Hill Area

Land status

Ownership category State Park

Ownership information

  • Type Operator
    Owner Clark, Riemers, Mc Nallen And Stevens
    First year 1942

Production statistics

  • Year 1918
    Period 1916-1918
    Material ORE
    Accuracy Estimate
    Description Cp_Grade: ^42% Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Cr2O3 Chromium Chromium 42wt-pct
  • Year 1942
    Material ORE
    Accuracy Estimate
    Description Ap_Grade: ^37.98% Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Cr2O3 Chromium Chromium 38wt-pct

Reserves and resources

  • Type In-situ
    Estimate year 1953
    Total resources 90,000mt ore
    Commodity Subtype Grade units Group Importance Year
    Chromium Cr2O3 50 wt-pct Chromium Major 1953

Comments on the reserve resource information

  • EXPLORATION RECOMMENDED TO A GREATER DEPTH IN THE WINZE AND NEAR THE N SERPENTINE-SCHIST CONTACT

Comments on the workings information

  • WORKINGS (1943) CONSISTED OF A LARGE OPEN CUT, AN 85 FT LONG ADIT, A 25 FT LONG WINZE, AND A SHAFT 40 FT DEEP.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS M100620

Bibliographic references

  • Deposit

    CDMG BULL 134, P. 282-283

  • Deposit

    STINSON, 1975, MINERAL PROPERTY REPORTS, CDMG UNPUBLISHED REPORT.

  • Deposit

    SOUTHERN PACIFIC CO., 1964, MINERALS FOR INDUSTRY, NORTHERN CALIF., V. 2, P. 20

  • Production

    CDMG BULL 134, P. 282-283.

  • Reserve-Resource

    CDMG BULL 134, P. 283.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-1983 Oster, Karel L. (Albers, John P.) U.S. Geological Survey