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Bonanza Mine

Past Producer in Calaveras 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. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10028793
MRDS ID M005995
Record type Site
Current site name Bonanza Mine
Related records 10235478

Geographic coordinates

Geographic coordinates: -120.63129, 38.02463 (WGS84)
Elevation 488
Relative position APPROX 4 1/2 MI NE OF COPPEROPOLIS

Site location context

Political divisions (FIPS codes)

Calaveras(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Salt Spring Valley(quadrangle 1:24,000 scale)

San Andreas(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Stanislaus(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Calaveras

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 002N 012E 14 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

Nearby scientific data

(1) -120.63129, 38.02463
ListMap

Economic information

Ore body information

  • Strike NE
    Dip E
    Thickness 0.91M

Comments on the geologic information

  • GEOL.DESC: QUARTZ AND DIABASE VEIN MATERIAL, FOOTWALL IS TALCOSE AND HANGING WALL IS SLATE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years 1920'S

Comments on the production information

  • PROSPECTED IN 1934 NO PRODUCTION RECORD FOUND

Workings at the site

  • Type of workings Underground
    Area 5.261HA
    Overall depth 28.96M

Comments on the workings information

  • A 95 FT SHAFT WITH LEVELS AT 30 , 50 AND 85 FT, EACH LEVEL HAS APPROX 30 FT OF DRIFTS TO THE NE

Reference information

Bibliographic references

  • Deposit

    CLARK, W.B., LYDON, P.A., 1962 , MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY, CALIF.; COUNTY REPOR T2 ; CALIF. DIV. OF MINES AND GEOLOGY, P 140 AND PLB

  • Deposit

    LOGAN, C.A., FRANKE, H., 1936 , MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY; CALIF. JOUR. MINES AND GEOLOGY, VOL. 32 , NO. 3 ; DIV. OF MINES, P 244 - 5 AND 299

  • Production

    CLARK ( 1962 )

General comments

Subject category Comment text
Deposit VEIN, QUARTZ AND DIABASE VEIN MATERIAL, FOOTWALL IS TALCOSE AND HANGING WALL IS SLATE

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1979 Mateik, R.; Albers, John P. 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.