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Amador Star

Past Producer in Amador county in California, United States with commodities Gold, Silver
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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. Host and associated rocks
  9. Nearby scientific data
  10. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Ownership information
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. Reporter information

Geologic information

Identification information

Deposit ID 10102592
MRDS ID M004954
Record type Site
Current site name Amador Star
Alternate or previous names Hamberger, Rhetta, West American Cons. Gold Mines.
Related records 10284331

Geographic coordinates

Geographic coordinates: -120.84769, 38.52907 (WGS84)
Relative position ABOUT 3 MILES N. PLYMOUTH

Site location context

Political divisions (FIPS codes)

Amador(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Fiddletown(quadrangle 1:24,000 scale)

Placerville(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Cosumnes(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 008 010E 23 California

Commodities

Commodity Importance
Gold Primary
Silver Primary

Materials information

Materials Type of material
Gold Ore
Pyrite Ore
Silver Ore
Quartz Gangue

Analytical data

Result LATEST OPERATIONS PRODUCED ORE ASSAYED AT $6/TON

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone

Nearby scientific data

(1) -120.84769, 38.52907
ListMap

Economic information

Geologic structures

Type of structure Local
Structure description Fault Exposed In Workings Shows Minor Offset In Quartz Vein.

Ore body information

  • General form PINCH AND SWELL
    Thickness 2.74M

Comments on the geologic information

  • GEOL.DESC: QUARTZ VEIN RANGING FROM 2 1/2 TO 9 FT. IN THICKNESS CONTAINS PYRITE BEARING QUARTZ STRINGERS; SLATE HOST ROCK STRIKES NORTH ALONG A 1/2 MILE WIDE BELT; ORE VEIN EXPOSED IN ADIT IS AT CONTACT WITH SLATE HANGING WALL, GREENSTONE FOOTWALL.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years PRIOR TO 1900 , 1920'S, 1933 , 1934 , 1935

Ownership information

  • Type Owner
    Owner Eliza M. Kaiser

Comments on the production information

  • SOME ORE PRODUCED PRIOR TO 1900; OPERATED INTERMITTENTLY 1917-1935. SOME PRODUCTION REPORTED DURING 1933, 1934, 1935 AND SINCE LAST PRODUCTION WAS ONLY A FEW THOUSAND DOLLARS, AND NO NEW ORE WAS FOUND, WORK WAS ABANDONED AND EQUIPMENT REMOVED. MINE PRODUCED OVER $20,000 IN GOLD AND SILVER 1932-35; MINOR COPPER AND LEAD. AGRICULTURAL PATENT OF 130 ACRES. LIES SOUTH OF THE BAY STATE MINE

Workings at the site

  • Type of workings Underground
    Area 52.611HA
    Overall depth 900M

Comments on the workings information

  • VERTICAL SHAFT 900 FT., DRIFTS 600 FT. ON 300 FT. LEVEL, DRIFTS 600 FT. AND 1000 FT. CROSSCUT ADIT ON 500 FT. LEVEL, SOME DRIFTS AT 800 FT. LEVEL.

Reference information

Bibliographic references

  • Deposit

    CARLSON, D.W. AND CLARK, W.B., 1956 , MINES AND MIN. RES. OF AMADOR COUNTY: CJMG, VOL. 50 , P. 167 - 168

  • Deposit

    LOGAN, C.A., 1934 , MOTHER LODE GOLD BELT OF CAL.: S.D.M. BULL. 108 , P. 61 - 62 .

  • Production

    CARLSON, D.W. AND CLARK, W.B., 1954

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1972 Gere, W. U.S. Geological Survey
Updater 01-APR-1978 Tatkin, T.; Albers, J. 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.