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Bruner 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. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10102688
MRDS ID M006285
Record type Site
Current site name Bruner Mine
Alternate or previous names St Lawrence Mine, Bald Hill Mine, Claims: Apex, Dewett, Evening Star, Gold Hill, New Discovery, Romaggi & Costa, Spring Gulch Const.

Geographic coordinates

Geographic coordinates: -120.52794, 38.04602 (WGS84)
Elevation 451
Relative position 1 MI SE OF ANGELS CAMP ( 1962 )

Site location context

Political divisions (FIPS codes)

Calaveras(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Angels Camp(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 013E 10,11 California

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Ankerite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -120.52794, 38.04602
ListMap

Economic information

Ore body information

  • Strike NW
    Dip NE
    Thickness 3.05M

Comments on the geologic information

  • SEVERAL PARALLEL VEINS, MIXTURE OF QUARTZ STRINGERS, COUNTRY ROCK CHLORITIC AMPHIBOLITE SCHIST

Economic information about the deposit and operations

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

Comments on the production information

  • FREE MILLING, ACTIVE PRIOR TO 1888 , LATTER 1880'S, 1913 - 1914 , 1938 , 1940 , 1897 - BALD HILL WORKED, PROSPECTED 1938 TO 1940 . NO PRODUCTION RECORD FOUND.

Comments on the reserve resource information

  • 1897 BALDHILL WORKED

Comments on the workings information

  • DEVELOPED BY 400 FT INCLINE SHAFT OF 64 DEG, TWO SHAFTS 60 AND 100 FT DEEP AND WITH 300 FT OF DRIFTS. 400 FT SHAFT HAS LEVELS AT 100 AND 400 FT

Reference information

Bibliographic references

  • Deposit

    CLARK, W.B., LYDON, P.A., 1962 , MINES AND MINERAL RESOURCES OF CALAVERAS COUNTY, CALIF. COUNTY REPORT 2 ; CALIF. DIV. OF MINES AND GEOLOGY, P 34 - 35 , 43 , 141 AND PL B

  • Deposit

    KERR, M.B., 1900 , REGISTER OF MINES AND MINERALS, COUNTY OF CALAVERAS, CALIF.; CALIF. MIN. BUR.

  • 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. 299 , 306 , 317 , 319

  • Production

    CLARK ( 1962 )

General comments

Subject category Comment text
Deposit VEIN
Deposit COMPRISES 8 CLAIMS, PROPERTY WORKED FOR PLACE GOLD & POCKET GOLD IN EARLY DAYS ; INFO.SRC : 1 PUB LIT

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.

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.