1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Half Chrome Mine

Past Producer in Nevada county in California, United States with commodities Chromium, Iron
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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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Mineral rights holdings
  13. Land status
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10116215
MAS/MILS ID 0060570061
Record type Site
Current site name Half Chrome Mine
Alternate or previous names Wolf, Wolf Mine, Limekiln, Half Chrome

Geographic coordinates

Point of reference Trench
Geographic coordinates: -121.10073, 39.09099 (WGS84)
Elevation 457
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

Nevada(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Lake Combie(quadrangle 1:24,000 scale)

Yuba City(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Bear(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Nevada

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 014 N 008 E 04 S2SW California

Commodities

Commodity Importance
Chromium Critical Tertiary
Iron Tertiary

Materials information

Materials Type of material
Chromite Unknown
Hematite Unknown
Magnetite Unknown

Nearby scientific data

Trench (1) -121.10073, 39.09099
ListMap

Economic information

Ore body information

  • Strike N40W
    Dip 80N
    Thickness 30M
    Length 24M
    Width 9M
    Depth to top 0M
    Field Value
    Type of Orebody #1 DISSEMINATED
    Shape of Orebody #1 LENTICULAR
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control LITHOLOGY
    Secondary Ore Control FRACTURING
    Type of Wallrock Alter. #1 CARBONITIZATION
    Strike And Dip N40W:80N
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 780213

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1916
Year of first production 1916

Mining district

District name Wolf Creek District

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category State Forest

Ownership information

  • Type Owner
    Owner E. H. Thompson Reported Owner During W. W. I
    Home office California
    Year 1976
  • Type Operator
    Owner Guy Walsh And Mr. Hall-Operated The Property In 1917-1918
    Home office California
    Year 1976

Comments on the production information

  • E.H.THOMPSON AND H.C.SCHROEDER SHIPPED 49 LONG TONS OF ORE 1916. THE ORE CONTAINED ABOUT 35 PERCENT CR2O3. WALSH AND HARTED A PRODUCTION OF 147 LONG TONS IN 1917. NO WORK HAS BEEN SINCE 1917. INSUFFICIENT DATA FORMATRIX CALCULATIONS

Reference information

Bibliographic references

  • Deposit

    RYNEARSON,G.A,1953,CDM AND G BULL134,PT.3,CHAP 5,P.248

Reporter information

Type Date Name Affiliation Comment
Reporter 22-MAY-86 Unknown U.S. Bureau of Mines

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.