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  3. Mineral Resource Data System (MRDS)

Confidence Group

Past Producer in Tuolumne county in California, United States with commodities Gold, Lead
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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. 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 10077977
MRDS ID W026071
Record type Site
Current site name Confidence Group
Alternate or previous names Little Jessie, Edith, Independence, Confidence No. 2
Related records 10238709

Geographic coordinates

Geographic coordinates: -120.20878, 38.04353 (WGS84)
Elevation 1219
Relative position ABOUT 12 MILES E. OF SONORA, AT THE TOWN OF CONFIDENCE.

Site location context

Political divisions (FIPS codes)

Tuolumne(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Twain Harte(quadrangle 1:24,000 scale)

San Andreas(quadrangle 1:100,000 scale)

Sacramento(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 002N 016E 10 California

Comments on the location information

  • W 1/2 OF SECTION

Commodities

Commodity Importance
Gold Primary
Lead Tertiary

Materials information

Materials Type of material
Galena Ore
Gold Ore

Host and associated rocks

  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -120.20878, 38.04353
ListMap

Economic information

Ore body information

  • Strike N 14 W
    Dip 18 - 30 E
    Thickness 4.57M

Comments on the geologic information

  • GEOL.DESC: ORE VEIN VARIES FROM A FEW INCHES TO 15 FT; A DIKE ACCOMPANIES THE VEIN

Economic information about the deposit and operations

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

Mining district

District name East Belt

Land status

Ownership category Private

Workings at the site

  • Type of workings Underground
    Area 28.329HA
    Overall depth 164.59M

Comments on the workings information

  • 2 INCLINED SHAFTS WITH A WINZE AND SEVERAL DRIFTS.

Reference information

Bibliographic references

  • Deposit

    LOGAN, C.A., 1920 , AURBURN FIELD DIV., TUOLUMNE COUNTY: CMB REPT. 17 , P. 482

  • Deposit

    LOGAN, C.A., 1949 , MINES AND MIN. RES. OF TUOLUMNE COUNTY: CDMG REPT 45 , P. 61

  • Production

    LOGAN, C.A., 1949

General comments

Subject category Comment text
Deposit THIS MINE DISCOVERED IN 1853 , AND WAS ONE OF THE LARGER PRODUCERS ON THE EAST BELT.

Reporter information

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