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Lancha Plana Gold Dredging Co

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 10109127
MRDS ID M005610
Record type Site
Current site name Lancha Plana Gold Dredging Co
Related records 10114410

Geographic coordinates

Point of reference Centroid
Geographic coordinates: -120.95498, 38.21383 (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

Wallace(quadrangle 1:24,000 scale)

San Andreas(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

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 009E 10,11 California

Commodities

Commodity Importance
Gold Primary

Nearby scientific data

Centroid (1) -120.95498, 38.21383
ListMap

Economic information

Comments on the geologic information

  • GEOL.DESC: DREDGING OPERATIONS ON THE G. B. PODESTA RANCH, FORMERLY HILLS RANCH, COMMENCED IN SPRING OF 1936. AVERAGE DEPTH OF AURIFEROUS SAND AND GRAVEL IS 20' ; OVERLAIN IN PLACES BY A THIN LOAM UP TO 6'THICK. BEDROCK IS OF SOFT CLAY. FIFTEEN MEN EMPLOYED WHEN PROPERTY VISITED IN JANUARY 1936. COMPANY HOPES TO DREDGE 1 1/2 MILLION CU. YDS. A YEAR, OR ABOUT 3500 CU. YDS A DAY. FINE, FLAKE GOLD SAID TO AVERAGE 10? PER YD

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No

Comments on the production information

  • OPERATED MAY 1936 TO FEB. 1940

Reference information

Bibliographic references

  • Deposit

    CALIF. V. 32, (32nd report of the State Mineralogist) NO. 3, P. 345-6

  • Deposit

    CALIF. Bulletin. 135, P. 253.

  • Deposit

    Clark, W.B, and Lydon, P.A., 1962, Mines and Mineral Resources of Calaveras County: California Division of Mines and Geology, COUNTY REPT. NO. 2, P. 201

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.