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Alta Hill 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. Land status
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10139966
MRDS ID W024337
MAS/MILS ID 0060570308
Record type Site
Current site name Alta Hill Mine
Alternate or previous names Alta Hill, Alta Hill Chrome Mine
Related records 10076987, 10212856

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -121.06604, 39.23459 (WGS84)
Elevation 792
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

Grass Valley(quadrangle 1:24,000 scale)

Yuba City(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Yuba(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 016 N 008 E 22 C California

Commodities

Commodity Importance
Chromium Critical Tertiary
Iron Tertiary

Materials information

Materials Type of material
Chromite Unknown
Serpentine Unknown

Nearby scientific data

Main Entrance (1) -121.06604, 39.23459
ListMap

Economic information

Ore body information

  • Strike N00W
    Dip 85N
    Thickness 0M
    Length 0M
    Width 15M
    Depth to top 0M
    Field Value
    Shape of Orebody #1 LENTICULAR
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control LITHOLOGY
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 CARBONITIZATION
    Strike And Dip N00W:85N
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 820510

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Metallic
Significant No
Discovery year 1918
Year of first production 1918

Mining district

District name Grass Valley Area

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner W. F. Mau,O. R. Heidrick,And L. W. Williams-Owned,Operated
    Home office California
    Year 1976
  • Type Operator
    Owner Codd, A. A. - Leased Mine During Latter Part Of 1918.
    Home office California
    Year 1976

Reference information

Bibliographic references

  • Deposit

    RYNEARSON,G.A.,1953,CDM AND G BULL 134,PT.3,CHAP 5,P.244

  • Deposit

    BRADLEY,W.W.,1941,CAL JOUR MINES AND GEOL,NO.3,P.374-379

General comments

Subject category Comment text
Deposit WHEN CAMERON VISTED THE PROPERTY THE ORE IN THE LENES WERE R LOW-GRADE MATERIAL. ORE CONTAINED31 TO 36 PERCENT CR2O3. 177 LONG TONS OF ORE WAS SHIPPED BY WILLIAMS. INSUFFICIENT DATA FOR MATRIX CALCULATIONS.

Reporter information

Type Date Name Affiliation Comment
Reporter 22-MAY-1986 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.