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  3. Mineral Resource Data System (MRDS)

Dorriss Mine

Past Producer in Sierra 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. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10184441
MRDS ID W025427
MAS/MILS ID 0060910237
Record type Site
Current site name Dorriss Mine
Related records 10117067, 10077651

Geographic coordinates

Point of reference Main Entrance
Geographic coordinates: -120.87913, 39.48048 (WGS84)
Elevation 1243
Location accuracy 500(meters)

Site location context

Political divisions (FIPS codes)

Sierra(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Pike(quadrangle 1:24,000 scale)

Truckee(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)

Federal lands

Tahoe 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 Sierra

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 019 N 010 E 29 SWSE California

Commodities

Commodity Importance
Chromium Critical Tertiary
Iron Tertiary

Materials information

Materials Type of material
Chromite Unknown
Serpentine Unknown
Uvarovite Unknown

Nearby scientific data

Main Entrance (1) -120.87913, 39.48048
ListMap

Economic information

Ore body information

  • Thickness 0M
    Length 0M
    Width 0M
    Depth to top 0M
    Field Value
    Shape of Orebody #1 LENTICULAR
    Primary mode of Origin MAGMATIC DIFFER
    Primary Ore Control LITHOLOGY
    Secondary Ore Control FAULTING
    Degree of Wallrock Alter. MODERATE
    Type of Wallrock Alter. #1 CARBONITIZATION
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 0
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 820614

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 1918
Year of first production 1918

Mining district

District name Forest Area

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner R. Dorriss,M. H. Davis,H. M. Bradbury, A. M. Dobbie-1918
    Home office California
    Year 1976
  • Type Operator
    Owner Leichester And Morgan
    Home office California
    Year 1976
    First year 1918

Reference information

Bibliographic references

  • Deposit

    RYNEARSON,G.A.,1953,CDM AND G BULL 134,PT.3,CHAP.5,P.259

General comments

Subject category Comment text
Deposit NO ORE REMAINED IN PLACE, BUT PIECES OF CHROMITE ON THE DUMP INDICATED THAT SOME OF THE ORE HAD BEEN MINED. TOTAL PRODUCTION FROM THESE WORKINGS PROBABLY DID NOT EXCEED G TONS. 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.