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Big Spring Claim

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 10028958
MRDS ID M006250
Record type Site
Current site name Big Spring Claim
Alternate or previous names Graham
Related records 10260294

Geographic coordinates

Geographic coordinates: -120.52794, 38.05297 (WGS84)
Elevation 442
Relative position 1 1/4 MI S. OF ANGELS CAMP, E OF HWY 49

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 03 California

Comments on the location information

  • UTM EST, SE 1/4 SEC

Commodities

Commodity Importance
Gold Primary

Comments on the commodity information

  • ORE CONTAINS FREE GOLD, PYRITE AND CONSIDERABLE GOUGE ORE IN 1938 UP TO $60 PER TON AU

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -120.52794, 38.05297
ListMap

Economic information

Ore body information

  • Strike N 20 W
    Dip 50 NE
    Thickness 30.48M
    Depth to top 0M

Comments on the geologic information

  • GEOL.DESC: VEIN 10 TO 100 FT THICK, THERE ARE TWO VEINS ON PROPERTY, BOTH HAVE SIM STRIKE & DIP. BACK VEIN HAS AVE. THICKNESS OF 5 FT, OTHER VEIN IS MOTHER LODE VEIN, 80 FT EAST AT SURFACE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years 1932 - 1941

Comments on the production information

  • PROSPECTED IN 1920 - 21 BY ANGELS CAMP DEEP CO. ORIGINALLY WORKED DURING GOLD RUSH WHERE RICH SURFACE ORES MINED IN AREA. OPERATED CONTINUOUSLY 1932 - 41 . ORE IN 1938 OCCASIONALLY WAS VALUED AS HIGH AS $60 PER TON

Workings at the site

  • Type of workings Surface/Underground
    Area 4.856HA
    Overall depth 70.1M

Comments on the workings information

  • DEVELOPED BY 100 FT SHAFT, SOME SURFACE ORE MINED LATER DEVELOPED BY 230 FT INCLINED SHAFT

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 , 42 AND PLB

  • Deposit

    LOGAN, C.A., 1934 , THE MOTHER LODE GOLD BELT OF CALIF: CALIF DIV. OF MINES BULL. 108 P 128

  • 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

  • Production

    LOGAN ( 1934 ), CLARK ( 1962 )

General comments

Subject category Comment text
Deposit VEINS, 10 TO 100 FT THICK, TWO VEINS ON PROPERTY, BOTH HAVE SIMILAR STRIKE AND DIP. BACK VEIN HAS AVERAGE THICKNESS OF 5 FT, OTHER VEIN IS 80 FT E AT SURFACE

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.