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  3. Mineral Resource Data System (MRDS)

Mount Jefferson

Past Producer in Tuolumne county in California, United States with commodity Gold
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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. Reporter information

Geologic information

Identification information

Deposit ID 10034590
MRDS ID M021428
Record type Site
Current site name Mount Jefferson
Related records 10262836

Geographic coordinates

Geographic coordinates: -120.23405, 37.83853 (WGS84)
Elevation 884
Relative position ON THE W. SIDE OF GROVELAND

Site location context

Political divisions (FIPS codes)

Tuolumne(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Groveland(quadrangle 1:24,000 scale)

Oakdale(quadrangle 1:100,000 scale)

San Jose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Tuolumne(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Tuolumne

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 001S 016E 20 California

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Metamorphic Rock > Schist > Mica Schist

Nearby scientific data

(1) -120.23405, 37.83853
ListMap

Economic information

Ore body information

  • Strike N 75 E
    Dip 75 NW
    Thickness 7.62M

Comments on the geologic information

  • GEOL.DESC: SCHIST ALTERED FROM SLATE

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 12.141HA

Comments on the workings information

  • VEIN DRIFTED E. AND W. AT EVERY 100 FT LEVEL OF 500 FT. SHAFT

Reference information

Bibliographic references

  • Deposit

    CRAWFORD, J. J., 1884 , TWELFTH REPT. OF THE STATE MINERALOGIST: CMB REPT. 12 , P. 304

  • Deposit

    TUCKER, W. B., 1914 , TUOLUMNE COUNTY: CMB REPT. 14 , P. 157

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1978 Tatkin, T.; Albers, John P. 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.