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Independence I

Past Producer in Mariposa county in California, United States with commodities Gold, 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. Land status
  13. Ownership information
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10031085
MRDS ID M009668
Record type Site
Current site name Independence I
Alternate or previous names Twin Springs
Related records 10236748

Geographic coordinates

Geographic coordinates: -119.94459, 37.66603 (WGS84)
Elevation 975
Relative position 1/2 MILE E BRICEBURG-KINSLEY RD

Site location context

Political divisions (FIPS codes)

Mariposa(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Kinsley(quadrangle 1:24,000 scale)

Yosemite Valley(quadrangle 1:100,000 scale)

Mariposa(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Merced(hydrologic unit)

San Joaquin(hydrologic accounting unit)

San Joaquin(hydrologic subregion)

California(hydrologic region)

Federal lands

Stanislaus National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States California Mariposa

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 003S 018E 23 California

Comments on the location information

  • UTM ACC. NE 1/4, NE 1/4

Commodities

Commodity Importance
Gold Primary
Lead Secondary

Materials information

Materials Type of material
Galena Ore
Gold Ore
Pyrite Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate

Economic information

Ore body information

  • Strike N 55 W
    Dip 80 NE
    Thickness 0.46M
    Depth to top 0M

Comments on the geologic information

  • GEOL.DESC: DIKES ARE SCHISTOSE, WELL ALTERED. WALLROCKS OF CALAVERAS GROUP.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years 1932 - 1934

Land status

Ownership category National Forest

Ownership information

  • Type Owner
    Owner Charles Jordan (Ownership Disputed In
    Last year 1955

Comments on the production information

  • EARLY HISTORY NOT KNOWN, REACTIVATED 1934 .

Workings at the site

  • Type of workings Underground
    Length 182.88M
    Overall depth 18.29M

Comments on the workings information

  • CROSSCUT ADIT 300 FT. LONG, DRIFT 300 FT., DEVELOPING 300 FT. OF BACKS AVERAGING AT LEAST 50 FT. HIGH.

Reference information

Bibliographic references

  • Deposit

    BOWEN, O. E., JR., GRAY, C. H., JR., 1957 , MINES AND MINERAL DEPOSITS OF MARIPOSA COUNTY, CALIFORNIA: CALIF. JOUR. MINES AND GEOLOGY, V. 53 , NOS. 1 AND 2 , P. 113 , 270

  • Production

    BOWEN & GRAY 1957

General comments

Subject category Comment text
Deposit VEIN
Deposit UNPATENTED 20 ACRE CLAIM

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1973 Gere, W. U.S. Geological Survey
Updater 01-JAN-1979 Bowman, J. And 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.