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White Pine Mine

Past Producer in Plumas 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. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. Reporter information

Geologic information

Identification information

Deposit ID 10212610
MRDS ID M100420
MAS/MILS ID 0060630266
Record type Site
Current site name White Pine Mine
Alternate or previous names Bear Claim
Related records 10043620

Geographic coordinates

Point of reference Trench
Geographic coordinates: -120.99184, 39.86158 (WGS84)
Elevation 1597
Location accuracy 10(meters)

Site location context

Political divisions (FIPS codes)

Plumas(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Onion Valley(quadrangle 1:24,000 scale)

Portola(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

East Branch North Fork Feather(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

Plumas 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 Plumas

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 023 N 009 E 17 N2NENE California

Commodities

Commodity Importance
Chromium Critical Tertiary
Iron Tertiary

Materials information

Materials Type of material
Chromite Unknown
Olivine Unknown
Pyroxene Unknown
Serpentine Unknown
Talc Unknown

Nearby scientific data

Trench (1) -120.99184, 39.86158
ListMap

Economic information

Ore body information

  • Strike N26W
    Dip 43N
    Thickness 7M
    Length 62M
    Width 2M
    Area 1HA
    Depth to top 0M
    Field Value
    Type of Orebody #1 DISSEMINATED
    Shape of Orebody #1 IRREGULAR
    Shape of Orebody #2 TABULAR
    Shape of Orebody #3 LENTICULAR
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control LITHOLOGY
    Degree of Wallrock Alter. INTENSE
    Type of Wallrock Alter. #1 CARBONITIZATION
    Strike And Dip N26W:43N
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Total Surface Area (HA) 1
    Date of Last Modification 820823

Economic information about the deposit and operations

Operation type Surface-Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1937
Year of first production 1940

Mining district

District name Rock Creek District

Mineral rights holdings

Type of mineral rights Other

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner U.S. Forest Service - Plumas National Forest
    Interest 100
    Home office California
    Year 1976
  • Type Operator
    Owner Weeks, Herman (Last Operator)
    Home office California
    Year 1976
    Last year 1957

Comments on the production information

  • APPROXIMATELY 550 LONG TONS OF ORE AVERAGING 50 PER CENT CR2 WITH CR/FE=3.45 WAS SHIPPED BY 1943 MOST OF THE ORIGINAL DEP PROBABLY MINED OUT. 9 TONS SHIPPED IN 1957 - PROBABLY FROM D NO ORE IN SIGHT-NO RESERVE ESTIMATE THE AVERAGE MINEABLE GR CHROMITE IS 54.7 PERCENT,AND IRONIS 11.5 PERCENT. INSUFFICI DATA FOR MATRIX CALCULATIONS. ANALYSIS BY CDMG IN 1975 GAVE FOLLOWING PERCENTAGES-MASSIVE 2 07.50,CR2O3 40.19,FEO 11.92,TOTAL FE 13.68,AL203 21.26,MGO CR/FE 2.59

Workings at the site

  • Type of workings Surface
    Area 1HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Mining Method OPEN PIT
    Swell Factor .6
    Avg. Overburden Thickness 0
    Hardness of Ore M-HARD ROCKS
  • Type of workings Underground
    Length 2M
    Overall depth 2M
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Mining Method OPEN STOPE
    Swell Factor .6
    Hardness of Rock SOFT NONPLASTIC FISSURED MODERATE WATER
    Rock Characteristics MULTIPLE SYSTEMS OF WEAKNESS PLANES
    Rock Support Chars. UNSUPPORTING NO FLOW
    Mine Support Chars. TIMBER W/LAGGING CONCRETE-UNREINFOR
    Number of Shafts 1
    1st Condition of Workings CAVED AT PORTAL

Reference information

Bibliographic references

  • Deposit

    RYNEARSON,GA.CAL DIV MINES BULL 134,PT 3,CH 5,P 293-295 195

Reporter information

Type Date Name Affiliation Comment
Reporter 27-FEB-1984 Stinson 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.