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  3. Mineral Resource Data System (MRDS)

Three Sisters

Past Producer in Shasta 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 10077605
MRDS ID W025309
Record type Site
Current site name Three Sisters
Related records 10214026

Geographic coordinates

Geographic coordinates: -122.64249, 40.71679 (WGS84)
Elevation 610
Relative position ABOUT 1 MILE N. OF FRENCH GULCH

Site location context

Political divisions (FIPS codes)

Shasta(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

French Gulch(quadrangle 1:24,000 scale)

Redding(quadrangle 1:100,000 scale)

Redding(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Shasta

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 033N 007W 15 California

Comments on the location information

  • COORDINATES ESTIMATES; SECTION PROJECTED ; INFO FROM LAND.ST :UNDETERMINED

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Pyrite Ore
Quartz Gangue

Host and associated rocks

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

Nearby scientific data

(1) -122.64249, 40.71679
ListMap

Economic information

Ore body information

  • General form LENSES
    Strike N 50 E
    Dip 70 NW
    Thickness 0.61M
  • General form LENSES
    Dip 70 NW

Controls for ore emplacement

  • Veins Follow A 3 Ft. Thick Fault Zone

Comments on the geologic information

  • GEOL.DESC: 3 VEINS; ARSENOPYRITE DISSEMINATED THROUGH QUARTZ MATERIAL; QUARTZ PORPHYRY FORMS A WALL NEXT TO SLATE AT DEPTH; TENSION FRACTURES INDICATE HANGING WALL BLOCK OF FAULT IS DOWNDROPPED.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years 1895 - 1905

Mining district

District name French Gulch

Workings at the site

  • Type of workings Underground
    Area 24.282HA

Comments on the workings information

  • 4 CLAIMS; 1 ADIT 1,350 FT., DRIFTS 800 FT., A STOPE 200 FT., A WINZE 120 FT.; ORE SHOOT 200 FT. X 18 IN.; LOCATED 1895 .

Reference information

Bibliographic references

  • Deposit

    ALBERS, J.P., 1965 , ECON. GEOL. OF THE FRENCH GULCH QUADRANGLE, SHASTA AND TRINITY COUNTIES, CAL.: CDMG, SPEC. REPT. 85 , P. 29.

  • Deposit

    BROWN, G.C., 1916 , SHASTA COUNTY: CMB REPT. 14 , P. 800

  • Deposit

    CRAWFORD, J.J., 1896 , THIRTEENTH REPT. OF THE STATE MINERALOGIST: CMB REPT. 1 , P. 367.

  • Deposit

    FERGUSON, H.G., 1912 , GOLD LODES OF THE WEAVERVILLE QUADRANGLE, CAL.: U.S. GEOLOGICAL SURVEY BULL. 540 , P. 69

  • Deposit

    5) LYDON, P.A. AND O'BRIEN, J.C., 1974 , MINES AND MIN. RES. OF SHASTA COUNTY, CAL.: CDMG, COUNTY REPT. 6 , 154 P.

  • Production

    ALBERS, J.P., 1965

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-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.