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  3. Mineral Resource Data System (MRDS)

Republican Group

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. Mining district
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10034617
MRDS ID M021462
Record type Site
Current site name Republican Group
Related records 10214549

Geographic coordinates

Geographic coordinates: -120.38683, 37.85548 (WGS84)
Relative position ABOUT 3 MILES S.E. OF CHINESE CAMP, ALONG THE N.E. BANK OF DON PEDRO RESERVOIR

Site location context

Political divisions (FIPS codes)

Tuolumne(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Chinese Camp(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 014E 12,13 California

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone

Nearby scientific data

(1) -120.38683, 37.85548
ListMap

Economic information

Ore body information

  • Strike N 40 W
    Dip 65 NE

Comments on the geologic information

  • GEOL.DESC: THREE VEINS DEVELOPED ON PROPERTY; BROAD MINERALIZED ZONE CONSISTS OF VEINS OR LENSES OF QUARTZ CUTTING SCHISTS. VEINS HAVE GREENSTONE HANGING WALL, SLATE FOOTWALL.

Economic information about the deposit and operations

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

Mining district

District name Mother Lode

Workings at the site

  • Type of workings Underground
    Area 35.209HA

Comments on the workings information

  • INCLINED SHAFT ON REPUBLICAN CLAIM, 700 FT., WITH LEVELS AT 200 , 300 , 400 , AND 600 FT. PRINCIPAL ORE SHOOT DEVELOPED 500 FT., AVERAGE THICKNESS 12 FT.

Reference information

Bibliographic references

  • Deposit

    STORM, E.M., 1900 , MOTHER LODE REGION OF CAL.: CAM BULL. 18 , P. 133

  • Deposit

    TUCKER, W.B., 1914 , TUOLUMNE COUNTY: CMB REPT. 14 , P. 160 .

General comments

Subject category Comment text
Deposit THIS GROUP CONSISTS OF MAMMOTH, ORCUTT, REPUBLICAN, HARRISON, AND WHITE OAK CLAIMS. PRINCIPAL CLAIMS ARE REPUBLICAN, AND MAMMOTH.

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.