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  3. Mineral Resource Data System (MRDS)

Spot Claim

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. 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 10286141
MRDS ID W024511
MAS/MILS ID 0060630267
Record type Site
Current site name Spot Claim
Alternate or previous names Salt Claim
Related records 10077084

Geographic coordinates

Point of reference Trench
Geographic coordinates: -120.99574, 39.86158 (WGS84)
Elevation 1609
Location accuracy 500(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 NWNE California

Commodities

Commodity Importance
Chromium Critical Tertiary
Iron Tertiary

Materials information

Materials Type of material
Chromite Unknown
Serpentine Unknown

Nearby scientific data

Trench (1) -120.99574, 39.86158
ListMap

Economic information

Ore body information

  • Strike N40W
    Dip 80N
    Thickness 0M
    Length 0M
    Width 0M
    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
    Strike And Dip N40W:80N
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 820521

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1941
Year of first production 1941

Mining district

District name Rock Creek District

Land status

Ownership category National Forest

Ownership information

  • Type Owner-Operator
    Owner Patterson And Spivey 1941-1943
    Home office California
    Year 1976

Reference information

Bibliographic references

  • Deposit

    RYNEARSON,G.A,1953,CDM AND G BULL134,PT.3,CHAP.5,P.295-296

General comments

Subject category Comment text
Deposit MOST OF THE ORE WAS INCLUDED WITHORE FROM WHITE PINE OR OTHE ITS. NO ACCURATE FIGURES ON THE TENOR OF THE ORE ARE AVAILA E TENOR IS BELIEVED TO BE 42 PERCENT CR2O3. INSUFFICIENT DAT MATRIX CALCULATIONS.THIS MINE IS SEVERAL HUNDRED YARDS WEST WHITE PINE CLAIM

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.