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Red Mtn., Little Red Mtn.

Occurrence in Mendocino county in California, United States with commodities Nickel, Cobalt
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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. Ownership information
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10067576
MRDS ID W000361
Record type Site
Current site name Red Mtn., Little Red Mtn.
Alternate or previous names Leggett Nicke Properties

Geographic coordinates

Geographic coordinates: -123.65722, 39.89068 (WGS84)
Relative position 2140 ACRES CONFINED LARGELY TO RED MTN. (EL. 4100 FT.) AND LITTLE RED MTN. (EL. 3215 FT.). LEGGETT IS ABOUT 23 AND 12 MI. RESPECTIVELY FROM RED MTN. AND LITTLE RED MTN. BY PAVED, GRADED AND UNIMPROVED DIRT ROADS. 3 MI. BY AIRLINE FROM U.S. HIGHWAY 101

Site location context

Political divisions (FIPS codes)

Mendocino(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Noble Butte(quadrangle 1:24,000 scale)

Covelo(quadrangle 1:100,000 scale)

Ukiah(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

South Fork Eel(hydrologic unit)

Northern California Coastal(hydrologic accounting unit)

Klamath-Northern California Coastal(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 Mendocino

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 023N;024N 016W;016W 05,06,07,08;17,18,19,20,29,30,31,32 California

Comments on the location information

  • UTM APPROX. LOC.

Commodities

Commodity Importance
Nickel Critical Tertiary
Cobalt Critical Tertiary

Materials information

Materials Type of material
Garnierite Ore

Analytical data

Result ASSAYS RANGE BETWEEN 0.35 AND 1.50 PERCENT NICKEL, AND AVERAGE BETWEEN 0.75 AND 0.82 PERCENT NICKEL. COBALT CONTENT IS LOW, AVERAGING ABOUT 0.04 PERCENT

Host and associated rocks

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

Nearby scientific data

(1) -123.65722, 39.89068
ListMap

Economic information

Ore body information

  • Thickness 6.1M

Comments on the geologic information

  • GEOL.DESC: AREA UNDERLAIN BY PERIDOTITE IN FAULT CONTACT ON S.W. AND E. WITH FRANCISCAN FORMATION, AND IN DEPOSITIONAL RELATIONSHIPS WITH U. CRETACEOUS SEDIMENTARY ROCKS. UPPER SURFACE OF ULTRAMAFIC MASS, WHICH CONTAINS DUNITE AND IS SERPENTINIZED ALONG JOINTS AND SHEAR ZONES, IS MANTLED BY LATERITE, RANGING IN DEPTH FROM A FEW FT. TO 20 FT. 2 DISTINCT ZONES FORMED BY LATERIZATION OF PERIDOTITE: (1)NICKEL-IRON LATERITE AND (2)NICKEL SILICATE LATERITE, WITH GARNIERITE DISSEMINATED THROUGHOUT WEATHERED AND FRACTURED BEDROCK BENEATH FERRUGINEOUS MANTLE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No
Discovery year 1955

Ownership information

  • Type Owner
    Owner Feeland And Placer Mining Claims Controlled By Union Carbide Nuclear Corp.

Reference information

Bibliographic references

  • Deposit

    HOTZ, P. E., 1966, NICKEL, IN MINERAL AND WATER RESOURCES OF CALIF.: U.S. SENATE DOCUMENT, 89TH. CONGRESS, 2ND. SESSION, P. 281

  • Deposit

    IRWIN, W. P., 1960, CALIF. DIV. MINES BULL. 179, P. 74.

  • Deposit

    BILBREY, J. H., JR., 1962, BUREAU OF MINES INFORMATION CIRCULAR 8103, P. 28

  • Deposit

    BRIGHT, J.H., 1974 ( 1958 ), PRIVATE COMMUNICATION.

  • Deposit

    5) DOW, DONALD H., AND THAYER, T.P., 1946 , CHROMITE DEPOSITS OF N. COAST RANGES OF CALIF; CALIF. D.O.M. BULL. 134 , PT. II, CH. 1

  • Deposit

    6) CHESTERMAN, C.W., 1976 , WRITTEN COMMUNICATION

  • Reserve-Resource

    REFER. (3)

General comments

Subject category Comment text
Deposit SEVERAL HUNDRED TONS OF HIGH GRADE CHROMITE HAVE BEEN MINED IN AREA SINCE 1918
Deposit Discovery Year: NICKEL-LATERITE DISCOVERED MIDDLE 1950'S

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1972 Coury, Anny B. U.S. Geological Survey
Updater 01-MAR-1978 Killman, K.; Albers, J. 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.