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  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Excelsior

Prospect 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. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Economic information about the deposit and operations
  12. Ownership information
  13. Links to other databases
  14. Bibliographic references
  15. Reporter information

Geologic information

Identification information

Deposit ID 10097004
MRDS ID M004959
Record type Site
Current site name Excelsior
Alternate or previous names Idaho Jr.

Geographic coordinates

Geographic coordinates: -120.84824, 38.52823 (WGS84)
Relative position ABOUT 1 MILE E OF AMADOR CITY

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 008N 010E 23 California

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

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) -120.84824, 38.52823
ListMap

Economic information

Ore body information

  • General form TABULAR
    Strike N 3 W
    Dip 65 E

Comments on the geologic information

  • GEOL.DESC: QUARTZ VEIN HAS AVERAGE THICKNESS OF 2 FT. LYING BETWEEN SLATE FOOTWALL AND GREENSTONE HANGING WALL.

Economic information about the deposit and operations

Development status Prospect
Commodity type Metallic
Deposit size Small
Significant No

Ownership information

  • Type Operator
    Owner Gertrude Clark

Comments on the production information

  • NO PRODUCTION RECORD

Comments on the workings information

  • SHAFT 50 FT. ON VEIN

Reference information

Bibliographic references

  • Deposit

    CARLSON, D.W. AND CLARK, W.B., 1954 , MINES AND MIN. RES. OF AMADOR COUNTY, CAL.: CJMG, VOL. 50 , 245

  • Deposit

    LOGAN, C.A., 1927 , AMADOR COUNTY: CMB REPT. 23 , P. 189

  • Deposit

    LOGAN, C.A., 1934 , MOTHER LODE GOLD BELT OF CAL: CDM BULL. 108 , P. 119

  • Deposit

    TUCKER, W.B., 1914 , AMADOR COUNTY: CMB REPT. 14 , P. 28

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.