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  3. Mineral Resource Data System (MRDS)

Rappahannock

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. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10034612
MRDS ID M021455
Record type Site
Current site name Rappahannock
Related records 10165968

Geographic coordinates

Geographic coordinates: -120.45989, 37.97241 (WGS84)
Elevation 495
Relative position ABOUT 2 1/2 MILES N.W. OF JAMESTOWN, N.W. AND ADJACENT TO RAWHIDE CLAIM

Site location context

Political divisions (FIPS codes)

Tuolumne(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Sonora(quadrangle 1:24,000 scale)

Oakdale(quadrangle 1:100,000 scale)

San Jose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Stanislaus(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 001N 014E 05 California

Commodities

Commodity Importance
Gold Primary

Comments on the commodity information

  • HIGH-GRADE ORE ENCOUNTERED

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Host and associated rocks

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

Nearby scientific data

(1) -120.45989, 37.97241
ListMap

Economic information

Ore body information

  • Strike N 35 W
    Dip 65 NE
    Depth to top 0M

Controls for ore emplacement

  • Fault Fissure

Comments on the geologic information

  • GEOL.DESC: SERPENTINE FOOTWALL, SLATE ON HANGING WALL. VEIN 70 FT THICK BETWEEN HOST ROCKS, BUT ORE VEIN IN FOOTWALL SEPARATED FROM CONTACT VEIN BY THIN LAYER OF GOUGE; VEIN AVERAGES 20 FT IN THICKNESS; SAME ORE VEIN MINED AT ADJACENT RAWHIDE CLAIM. NORTH OF SHAFT QUARTZ AND AMPHIBOLITE SCHIST CROP OUT.

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 Belt

Workings at the site

  • Type of workings Underground
    Area 13.355HA

Comments on the workings information

  • INCLINED SHAFT 1150 FT. IN FOOTWALL; CROSSCUT TO VEIN AT 350 FT. LEVEL FOR 250 FT.; CROSSCUT AT 600 FT LEVEL 140 FT. TO VEIN AND EAST INTO HANGING WALL ADDITIONAL 100 FT.; CROSSCUT AT 1100 FT LEVEL 295 FT EAST CROSSCUTTING VEIN AND HANGING WALL.

Reference information

Bibliographic references

  • Deposit

    CRAWFORD, J.J., 1896 , THIRTEENTH REPT. OF THE STATE MINERALOGIST: CMB REPT. 13 , P. 489

  • Deposit

    TUCKER, W.B., 1914 , TUOLUMNE COUNTY: CMB REPT. 14 , P. 159

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.

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.