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Oak Hill

Past Producer in Tuolumne county in California, United States with commodities Copper, Silver, 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. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Land status
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10077887
MRDS ID W025958
Record type Site
Current site name Oak Hill
Related records 10190641

Geographic coordinates

Geographic coordinates: -120.45489, 37.72131 (WGS84)
Elevation 256
Relative position 4 MILES SE. OF COOPERSTOWN

Site location context

Political divisions (FIPS codes)

Tuolumne(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

La Grange(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 002S 014E 32 California

Commodities

Commodity Importance
Copper Primary
Silver Secondary
Gold Secondary

Comments on the commodity information

  • OXIDES, CARRYING A FAIR AMOUNT OF GOLD FOUND FROM SURFACE TO DEPTH OF 100 FT. BELOW THIS CHALCOCITE, PYRITE IS ENCOUNTERED. AT ABOUT 300 FT. CHALCOPYRITE IS REACHED.

Materials information

Materials Type of material
Chalcocite Ore
Chalcopyrite Ore
Pyrite Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock

Nearby scientific data

(1) -120.45489, 37.72131
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Quartz Dike On Eastern Wall, 30 - 40 Ft. Wide, Crops Out On Surface And Is Traced Over 350 Ft.

Ore body information

  • Strike NW
    Dip SE
    Thickness 1.83M

Comments on the geologic information

  • GEOL.DESC: GANGUE ROCK CONSISTS OF CLAY SHALE, GENERALLY SHOWING A FOLIATED STRUCTURE, ALSO FORMING HOMOGENEOUS MASSES WITHOUT ANY REGULAR CLEVAGE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Medium
Significant No
Production years 1901 , 1908

Land status

Ownership category Private

Comments on the production information

  • NO PRODUCTION RECORDED; ORE SHIPPED DURING FIRST PERIOD VARIED; (AU, .22 , .71 AND .62 OZ/TON) (AG, 2.38 , 7.11 AND 6.16 OZ/TON) (CU, 4.9 , 10.5 AND 20.9 %).

Workings at the site

  • Type of workings Underground
    Length 792.48M
    Overall depth 106.68M

Comments on the workings information

  • ONE PRINCIPAL SHAFT WITH THREE LEVELS.

Reference information

Bibliographic references

  • Deposit

    AUBURY, L. E., 1908 , COPPER RESOURCES OF CALIFORNIA BULL. 50 ; CALIF. MIN. BUR., P. 250 - 251

  • Deposit

    LOGAN, C. A., 1928 , SACRAMENTO FIELD DIVISION ; 24TH REPT. STATE MINERALOGIST; CALIF. MIN. BUR., P. 7.

  • Deposit

    OLSEN MINE ALSO

  • Deposit

    ALSO IN SECS 30 31

  • Production

    LOGAN, C. A., 1928 , P. 7 (SEE REF.)

General comments

Subject category Comment text
Deposit TWO ORE SHOOTS, ONE CLOSE TO EASTERN WALL, THE OTHER NEAR WESTERN BOUNDRY.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1978 Fraticelli, L. A. (Albers, J.) U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references

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.