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South Fork Mines, Inc. Preston Property

Producer in Calaveras 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. Nearby scientific data
  8. Economic information about the deposit and operations
  9. Links to other databases
  10. Bibliographic references
  11. Reporter information

Geologic information

Identification information

Deposit ID 10109161
MRDS ID M006145
Record type Site
Current site name South Fork Mines, Inc. Preston Property
Related records 10284247

Geographic coordinates

Geographic coordinates: -120.69879, 38.16741 (WGS84)
Relative position ON S. FK. CALAVERAS RIVER, 4 MI. BY ROAD W OF SAN ANDREAS; TAILINGS ON GQ-222 IN SW 1/4 NE1/4

Site location context

Political divisions (FIPS codes)

Calaveras(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

San Andreas(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 004N 012E 30 California

Commodities

Commodity Importance
Gold Primary

Nearby scientific data

(1) -120.69879, 38.16741
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: THE COMPACTED GRAVEL IS MIXED WITH A LITTLE SAND AND CLAY; FEW BOULDERS. THREE DISTINCT GRAVEL CHANNELS; DEPOSIT IS EVIDENTLY THE REMNANT OF AN ANCIENT CHANNEL OR OLD BENCHES OF CALAVERAS RIVER. TWO OF THE CHANNEL RUNS HAVE A TOTAL WIDTH OF 350' OF GRAVEL, FROM 26-40' IN DEPTH. SLATE BEDROCK, GRAVEL TESTS $3 A CU. YD.

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No

Comments on the production information

  • WORKED BY DRIFTING IN 1920S, BY GASOLINE SHOVEL & MOVEABLE WASHING PLANT 1936, BY 382' OF SHAFTS AND DRIFTS 1937. WORKED ABOUT 1921 BY MEANS OF 3 SHALLOW SHAFTS AND 2 TUNNELS. IN 1936 THE GRAVEL WAS TO BE MINED BY MEANS OF A KOEHRING GASOLINE SHOVEL; EXPECT TO TREAT 600 CU. YDS. A DAY.

Reference information

Bibliographic references

  • Deposit

    CALIF. V. 32, NO. 3, P. 351 AND 363

  • Deposit

    CALIF. COUNTY REPT. NO. 2, P.206

  • Deposit

    USGS GQ-222

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1972 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.