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Rough Diamond Placer Mine

Producer in Calaveras county in California, United States with commodities Gold, Quartz
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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. Economic information about the deposit and operations
  10. Links to other databases
  11. Bibliographic references
  12. General comments
  13. Reporter information

Geologic information

Identification information

Deposit ID 10109144
MRDS ID M005876
Record type Site
Current site name Rough Diamond Placer Mine
Related records 10284117

Geographic coordinates

Point of reference Centroid
Geographic coordinates: -120.71376, 38.25778 (WGS84)
Relative position Original record had no geographic coordinates; these coordinates were derived from the PLSS description provided.

Site location context

Political divisions (FIPS codes)

Calaveras(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mokelumne Hill(quadrangle 1:24,000 scale)

San Andreas(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Calaveras(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Calaveras

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 005N 011E 24,25 California

Commodities

Commodity Importance
Gold Primary
Quartz Primary

Materials information

Materials Type of material
Gold Ore

Nearby scientific data

Centroid (1) -120.71376, 38.25778
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: OLD WORKINGS INCLUDE A 700' TUNNEL. QUARTZ CRYSTALS ARE ALSO SAID TO BE FOUND HERE IN THE SAND AND GRAVEL. FROM LATE IN 1942 UNTIL NOV. 1943, ABOUT 6600 LBS. OF CRYSTAL WERE RECOVERED; ABOUT 4700 CU. YDS. OF GRAVEL HAD BEEN MINED, AVERAGING 1.4 LBS. CRYSTAL PER CU. YD.

Economic information about the deposit and operations

Development status Producer
Commodity type Both
Significant No

Comments on the production information

  • AU AVERAGED $2.00-$2.50 A CARLOAD IN 1883. YIELDED SOME AU IN 1934. ESTIMATED THAT ABOUT 12,600 LBS. OF CRYSTAL REMAIN TO BE RECOVERED.

Reference information

Bibliographic references

  • Deposit

    CALIF. V. 32, NO. 3, P. 350 AND PL. 6 AND 7

  • Deposit

    CALIF. V. 39, NO. 3, P. 316; V. 40, NO. 4, P. 423-33

  • Deposit

    COUNTY REPT. NO. 2, P. 91, 205, 213, AND PLS C AND D

General comments

Subject category Comment text
Deposit ADD. REF. NO.4. MIS V. 15, NO. 11, P. 5; CALIF. B. 176, P. 459-60; RD FILE; BULL. 191, P. 345

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-72 Gere, W. 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.