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Maralls' Capco Leases

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

Geologic information

Identification information

Deposit ID 10103908
MRDS ID M100362
Record type Site
Current site name Maralls' Capco Leases

Geographic coordinates

Geographic coordinates: -120.77297, 39.106 (WGS84)
Location accuracy 1000(meters)
Relative position Assumed Spot Center Ne Of Ne, 31

Site location context

Political divisions (FIPS codes)

Placer(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Foresthill(quadrangle 1:24,000 scale)

Truckee(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

North Fork American(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

Tahoe National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States California Placer

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 015N;015N;015N 011E;011E;011E 31;31;31 NE OF NE (31); SE OF NE (31); SW OF NE (31) California

Commodities

Commodity Importance
Chromium Critical Primary

Materials information

Materials Type of material
Chromite Ore

Host and associated rocks

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

Nearby scientific data

(1) -120.77297, 39.106
ListMap

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1943
Year of last production 1945

Mining district

District name Forest Hill Divide Area

Land status

Ownership category National Forest

Ownership information

  • Type Operator
    Owner V. S. And H. R. Marall, T. C. Green
    First year 1943
    Last year 1945
  • Type Owner
    Owner Capitol Co. (Mineral Rights)
    First year 1949

Production statistics

  • Year 1945
    Period 1944-1945
    Material ORE CR
    Accuracy Accurate
    Description Cp_Grade: ^48.71% Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Cr2O3 Ore Chromium Chromium 49wt-pct
  • Year 1945
    Period 1944-1945
    Material ORE CR
    Accuracy Accurate
    Description Cp_Grade: ^58.34% Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Cr2O3 Ore Chromium Chromium 58wt-pct
  • Year 1945
    Period 1944-1945
    Material ORE CR
    Accuracy Accurate
    Description Cp_Grade: ^57.20% Cr2o3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Cr2O3 Ore Chromium Chromium 57wt-pct

Comments on the production information

  • FIRST 3 ENTRIES FROM NE OF NE, 31; SECOND 3 ENTRIES FROM SE OF NE, 31; LAST TWO ENTRIES FROM SW OF NE, 31.

Comments on the workings information

  • WORKINGS CONSISTED OF BULLDOZER CUTS, HAND PITS AND SOME UNDERGROUND WORKINGS, NOW CAVED. (1945)

Reference information

Bibliographic references

  • Deposit

    RYNEARSON, G.A., CDMG BULL 134, PT. 3, CHAPT. 5, P. 220, 221, 311

  • Production

    CDMG BULL 134, PT. 3, CHAPT. 5, P. 220.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JAN-83 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.