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

Bellwether

Past Producer in Amador county in California, United States with commodity Gold
Map
XML
JSON
KML
C
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. Land status
  13. Ownership information
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10028243
MRDS ID M005112
Record type Site
Current site name Bellwether
Related records 10260156

Geographic coordinates

Geographic coordinates: -120.77435, 38.36101 (WGS84)
Elevation 360
Relative position ABOUT 1/2 MILE N OF JACKSON

Site location context

Political divisions (FIPS codes)

Amador(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Jackson(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 006N 011E 21 California

Commodities

Commodity Importance
Gold Primary

Comments on the commodity information

  • FREE GOLD COMMONLY ASSOCIATED WITH SULFIDES

Materials information

Materials Type of material
Gold Ore

Analytical data

Result ASSAY OF SULFIDES WERE $80 TO $140/TON.

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone
  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -120.77435, 38.36101
ListMap

Economic information

Ore body information

  • Thickness 25.91M

Comments on the geologic information

  • GEOL.DESC: VEIN REPORTED TO BE 85 FT. THICK

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Mark Eudey
    First year 1953

Comments on the production information

  • DEVELOPED BY BELLWETHER MINING CO. BETWEEN 1895 AND 1900 - CLAIM LATER BOUGHT BY KENNEDY MINING COMPANY AND IS INCLUDED WITH THE HOLDINGS OF THAT MINE.THE WIDE VEIN IS ON THE EAST OR HANGING WALL BRANCH OF THE MOTHER LODE AND CARRIES ORE SIMILAR TO THE ZEILA MINE, ON THE SOUTH

Workings at the site

  • Type of workings Underground
    Overall depth 85.34M

Comments on the workings information

  • SEVERAL SHALLOW SHAFTS AS DEEP AS 180 FT.; LATER DEVELOPMENT INCLUDED ON INCLINED SHAFT 320 FT WITH CROSSCUTS AND DRIFTS;

Reference information

Bibliographic references

  • Deposit

    IRELAN, WM. JR., 1890 , TENTH REPT OF THE STATE MINERALOGIST: CMB REPT., P. 104 - 105

  • Deposit

    LOGAN, C.A., 1934 , MOTHER LODE GOLD BELT OF CAL.: CDM BULL. 108 , P 71 - 72

General comments

Subject category Comment text
Deposit GEOLOGIC DESCRIPTION BRIEF

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.

External references

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.