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Mother Lode Central Mines

Past Producer in Calaveras county in California, United States with commodities Gold, Silver, Copper, Lead
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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 10102686
MRDS ID M006278
Record type Site
Current site name Mother Lode Central Mines
Alternate or previous names Bullion and Marble Springs Claim
Related records 10114460

Geographic coordinates

Geographic coordinates: -120.53044, 38.04658 (WGS84)
Elevation 445
Relative position 1 MI SE OF ANGELS CAMP & JUST W OF STATE 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 03,10 California

Comments on the location information

  • UTM ACC - BULLION MINE SE 1/4 SEC 3 , NE 1/4 SEC 10

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Copper Tertiary
Lead Tertiary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Analytical data

Result ORE AVERAGED $7.20 PER TON AU

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -120.53044, 38.04658
ListMap

Economic information

Ore body information

  • Strike W
    Dip 55 N
    Thickness 7.62M

Economic information about the deposit and operations

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

Comments on the production information

  • ACTIVE 1934 - 193915 TONS OF ORE TREATED DAILY IN 1936; BULLION CLAIM WORKED OVER 30 YEARS AGO.

Comments on the workings information

  • DEVELOPED BY AT LEAST 3 SHAFTS: NO. 1 ON MARBLE SPRINGS CLAIM; 200 FT. INCLINED SHAFT WITH LEVEL AT 200 FT; NO. 2 SHAFT 500 FT TO SE SUNKEN VEIN, 600 FT INCLINED DEPTH AND 150 FT SHAFT ON BULLION VEIN. DRIFT CONNECTS 1 AND 2 ON 200 FT. LEVEL ORE SHOOT ON MARBLE SPRINGS VEIN IS SE OF SHAFT WITH PITCH OF 300 FT AND STOPE LENGTH OF 130 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 , 64 , 169 AND PL B

  • Deposit

    GOODWIN, J.G., 1957 , LEAD AND ZINC IN CALIF.; CALIF. JOUR. OF MINES & GEOL., DIV. OF MINES, VOL. 53 NOS 3 & 4 PG. 432

  • 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. 276 - 7

  • Production

    CLARK ( 1962 ) , GOODWIN ( 1957 )

General comments

Subject category Comment text
Deposit ORIGINALLY CLAIMS WORKED SEPARATE WITH CLAIMS ORGANIZED IN 1934 - BOTH MINES ON MAP ; INFO.SRC : 1 PUB LIT
Deposit VEINS, TWO VEINS ON PROPERTY; MARBLE SPRINGS (STRIKES NW, DIPS 55 NE) AND TO SW THE BULLION VEIN (STRIKES NEARLY W AND DIPS 55 N). MARBLE SPRINGS VEIN IS UP TO 15 FT THICK. BULLION VEIN 8 - 28 FT THICK, FOOTWALL IS OF GREENSTONE, HANGING WALL IS SLATE.

Reporter information

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