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German Ridge and Jupiter Mines

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. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Workings at the site
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10029052
MRDS ID M006394
Record type Site
Current site name German Ridge and Jupiter Mines
Related records 10235114

Geographic coordinates

Geographic coordinates: -120.53962, 38.11019 (WGS84)
Elevation 555
Relative position 5 1/2 MI BY ROAD NE OF ANGELS CAMP

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 Calaveras(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 003N 013E 15,16 California

Comments on the location information

  • UTM ACC SW 1/4 SEC 15, SE 1/4 SEC 16

Commodities

Commodity Importance
Gold Primary

Comments on the commodity information

  • ORE OCCURRED IN RICH POCKETS, MAINLY IN QTZ NEXT TO SLATE FOOTWALL

Materials information

Materials Type of material
Quartz Gangue

Host and associated rocks

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

Nearby scientific data

(1) -120.53962, 38.11019
ListMap

Economic information

Ore body information

  • Strike N 47 W
    Dip N 70 E
    Thickness 3.05M

Controls for ore emplacement

  • Ore Mainly In Qtz Next To Slate Footwall

Economic information about the deposit and operations

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

Comments on the production information

  • ORIGINALLY ACTIVE PRIOR 1889 , INTERMITTENTLY ACTIVE TO 1920'S, 1931 - 1934

Workings at the site

  • Type of workings Underground
    Overall depth 42.67M

Comments on the workings information

  • DEVELOPED BY 140 FT SHAFT WITH LEVELS AT 55 AND 100 FT, DRIFTS UP TO 150 FT TO NW & SE

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. 55 , 152 AND PL 3 .

  • 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. 259 - 60 AND 305 .

  • Production

    CLARK ( 1962 )

General comments

Subject category Comment text
Deposit VEIN, RANGES FROM 2 TO 10 FT IN THICKNESS, DIP SAID TO STEEPEN BELOW 100 FT LEVEL. FOOTWALL IS SLATE, HANGING WALL PORPHYRY, THE SCHIST IS INTERLACED WITH VEINLETS OF QTZ.
Deposit 82 ACRES. ; 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.

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.