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  3. Mineral Resource Data System (MRDS)

Last Chance

Past Producer in Tuolumne county in California, United States with commodities Gold, Copper
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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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Links to other databases
  12. Bibliographic references
  13. Reporter information

Geologic information

Identification information

Deposit ID 10034571
MRDS ID M021404
Record type Site
Current site name Last Chance
Alternate or previous names Free Lode, Charley, Haley & Wilbur.
Related records 10287445

Geographic coordinates

Geographic coordinates: -120.33767, 37.86325 (WGS84)
Relative position ON WEST SLOPE OF TUOLUMNE RIVER, ABOUT 4 MILES S. E. OF CHINESE CAMP.

Site location context

Political divisions (FIPS codes)

Tuolumne(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Moccasin(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)

Federal lands

Bureau of Land Management(Bureau of Land Management CA)

Bureau of Land Management CA BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States California Tuolumne

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 001S 015E 08,09 California

Commodities

Commodity Importance
Gold Primary
Copper Tertiary

Comments on the commodity information

  • GOLD ORE CARRIES IRON AND COPPER SULFIDES

Materials information

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

Analytical data

Result ORE SAID TO YIELD $12 PER TON IN 1892

Nearby scientific data

(1) -120.33767, 37.86325
ListMap

Economic information

Ore body information

  • General form PINCH AND SWELL
    Strike NW
    Dip 45 E
    Thickness 1.52M

Economic information about the deposit and operations

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

Comments on the workings information

  • INCLINED SHAFT 40 FT, DRIFTS 75 FT.

Reference information

Bibliographic references

  • Deposit

    LOGAN, C. A., 1928 , SACRAMENTO FIELD DIV., TUOLUMNE COUNTY: CDM REPT. 24 , P. 31

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.