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Oxford Mine & Mill

Past Producer in Sierra county in California, United States with commodities Gold, Chromium
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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. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10086547
MRDS ID X025475
Record type Site
Current site name Oxford Mine & Mill
Related records 10165287

Geographic coordinates

Geographic coordinates: -120.83381, 39.57821 (WGS84)
Elevation 1053
Relative position 1 1/4 MI. N OF DOWNIEVILLE

Site location context

Political divisions (FIPS codes)

Sierra(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Downieville(quadrangle 1:24,000 scale)

Portola(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 020N 010E 22,23,26,27 California

Commodities

Commodity Importance
Gold Primary
Chromium Critical Secondary

Materials information

Materials Type of material
Chromite Ore
Gold Ore
Quartz Gangue
Talc Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
  • Host or associated Host
    Rock type Metamorphic Rock > Serpentinite

Nearby scientific data

(1) -120.83381, 39.57821
ListMap

Economic information

Ore body information

  • Dip 53 E
    Thickness 2.29M

Comments on the geologic information

  • VEIN 2 - 7 1/2 FT. THICK, 50 FT. FROM SLATE-SERPENTINE CONTACT, CHANGES STRIKE FROM N 15 W TO N TO N 15 E. THE ORE IS OXIDIZED. THE WALLS A MIXTURE OF SLATE & SOAPSTONE, BUT THE HANGING WALL ON NO. 2 EXT. IS PORPHYRY.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Workings at the site

  • Type of workings Underground
    Area 40.47HA
    Overall length 1828.8M

Comments on the workings information

  • MAIN ADIT REACHES VEIN AT 650 FT., DRIFTS 900 FT. 2ND ADIT 150 FT. W 50 FT. DRIFT. 3RD ADIT 250 FT. CUTS VEIN 80 FT. FROM PORTAL, 30 FT. DRIFT.

Reference information

Bibliographic references

  • Deposit

    AVERILL, C. V., 1942 , MINES AND MINERAL RESOURCES OF SIERRA CO.: CDM CALIF. JOUR. MINES AND GEOL., VOL. 38 , NO. 1 , P. 35 , 62 .

  • Deposit

    MACBOYLE, E., 1920 , MINES AND MINERAL RESOURCES SIERRA CO.: CSMB 16TH REPORT STATE MINERALOGIST, DEC. 1918 , P. 109.

General comments

Subject category Comment text
Deposit VEIN, ORE SHOOT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1979 Hayden, F. (Albers, J.) U.S. Geological Survey

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.