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  3. Mineral Resource Data System (MRDS)

Union Flat

Occurrence in Amador 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 10028315
MRDS ID M005216
Record type Site
Current site name Union Flat
Related records 10162719

Geographic coordinates

Geographic coordinates: -120.64157, 38.46268 (WGS84)
Relative position 1/2 MI. N. OF ELEPHANT MINE

Site location context

Political divisions (FIPS codes)

Amador(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Pine Grove(quadrangle 1:24,000 scale)

San Andreas(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Mokelumne(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Amador

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 007N 012E 15 California

Commodities

Commodity Importance
Gold Primary

Nearby scientific data

(1) -120.64157, 38.46268
ListMap

Economic information

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Significant No

Ownership information

  • Type Operator
    Owner Chester Bonneau, Charles Guilian And James Giannini

Comments on the production information

  • PROPERTY WORKED DURING 1927, 1936, 1938 AND FROM MARCH-MAY, 1949

Comments on the workings information

  • HYDRAULIC

Reference information

Bibliographic references

  • Deposit

    CALIF. JOUR. MINES & GEOL. V. 50, NO. 1, JAN. 1954, P. 266

  • Deposit

    REPORT 23 OF STATE MINERALOGIST, P. 199

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.