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  3. Mineral Resource Data System (MRDS)

Big Sandy James Marshall

Occurrence in El Dorado 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. Ownership information
  10. Links to other databases
  11. Bibliographic references
  12. Reporter information

Geologic information

Identification information

Deposit ID 10092107
MRDS ID M007859
Record type Site
Current site name Big Sandy James Marshall

Geographic coordinates

Geographic coordinates: -120.80824, 38.78823 (WGS84)
Relative position S1/2 NW1/4

Site location context

Political divisions (FIPS codes)

El Dorado(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Garden Valley(quadrangle 1:24,000 scale)

Placerville(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

South Fork American(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(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 El Dorado

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 011N 010E 24 California

Commodities

Commodity Importance
Gold Primary

Nearby scientific data

(1) -120.80824, 38.78823
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Ownership information

  • Type Operator
    Owner H. J. Picchetti

Comments on the production information

  • ORIGINALLY LOCATED BY JAMES W. MARSHALL; ACTIVE DURING 1890'S. MINE WORKED FOR POCKET GOLD DURING 1930'S AND SEVERAL FINE SPECIMENS OF CRYSTALLIZED GOLD WERE FOUND. MOST OF THE ORE WAS LOW-GRADE WITH AVERAGE VALUES FROM $1.75 TO $2.25 PER TON. THE DEPOSIT IS ON THE MOTHER LODE BELT IN MARIPOSA SLATE. CLAIM COMPRISES 10.33 ACRES AND IS JOINED ON THE NORTH BY THE GREY EAGLE CLAIM.

Comments on the workings information

  • OPEN CUT 750 FT. LONG; 340 FT. VERTICAL SHAFT WITH 4 LEVELS.

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOL. V. 52, NO. 4, PP. 408-9, 488; V. 34, NO. 3, PL. II

  • Deposit

    DOM BULL. 108, PP. 19-20

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.