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  3. Mineral Resource Data System (MRDS)

Blue Bell

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 10029318
MRDS ID M006783
Record type Site
Current site name Blue Bell
Alternate or previous names Blue Bell Extension, Crown Point Crown Point Extension
Related records 10260282, 10235180

Geographic coordinates

Geographic coordinates: -120.56934, 38.37935 (WGS84)
Elevation 701
Relative position 1 1/2 MI NE OF GLENCO

Site location context

Political divisions (FIPS codes)

Calaveras(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

West Point(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 Calaveras

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 006N 013E 17 California

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate

Nearby scientific data

(1) -120.56934, 38.37935
ListMap

Economic information

Ore body information

  • Strike N 20 E
    Dip 30 SE
    Thickness 0.91M

Comments on the geologic information

  • GEOL.DESC: GRANODIORITED HANGING WALL, SLATE FOOTWALL VEIN ON CONTACT BETWEEN TWO

Economic information about the deposit and operations

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

Workings at the site

  • Type of workings Underground
    Area 24.282HA

Comments on the workings information

  • DEVELOPED BY 2 ADITS, ONE AT 1700 FT, 600 FT LONG WITH 540 FT OF DRIFTS AND CROSSCUTS, THE OTHER AT 1900 FT, 100 FT IN LENGTH

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 139

  • 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 298

  • Deposit

    TUCKER, W.B., 1915 , CALAVERAS COUNTY: 14TH REPT. STATE MIN.: CALIF. MIN. BUR. P. 71

General comments

Subject category Comment text
Deposit VEIN, GRANODIORITE HANGING WALL, SLATE FOOTWALL

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.