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Sierra Homestake

Past Producer in Sierra county in California, United States with commodities Gold, Copper
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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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  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 10086591
MRDS ID X025574
Record type Site
Current site name Sierra Homestake
Related records 10189492

Geographic coordinates

Geographic coordinates: -120.5752, 39.62544 (WGS84)
Elevation 1804
Relative position 4 1/2 MI. NNE OF SIERRA CITY

Site location context

Political divisions (FIPS codes)

Sierra(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Clio(quadrangle 1:24,000 scale)

Portola(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Yuba(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

Tahoe 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 Sierra

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 020N 012E 01 California

Commodities

Commodity Importance
Gold Primary
Copper Secondary

Comments on the commodity information

  • $4/TON AU TO SOUTH; $2/TON AU TO N

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Alteration

  • (Local) Carbonate

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -120.5752, 39.62544
ListMap

Economic information

Ore body information

  • Thickness 15.24M

Comments on the geologic information

  • SEVERAL VEINS, ONE OUTCROPPING 50 FT. THICK ON SURFACE W. A LITTLE MALACHITE AMONG WHITE QTZ. FLOAT. AN ADIT 75 FT. BELOW SHOWS A VEIN 24 IN THICK. 30 FT. LOWER AN ADIT SHOWS CONSIDERABLE CU SULFIDES & CARBONATE. LOWER VEIN UP TO 2 FT. THICK STRIKES S, DIPS 45 E. LOWEST ADIT SHOWS QTZ. UP TO 3 FT. THICK, W. A FISSURE BRANCHING INTO THE HANGING WALL WHERE A SML. BUNCH OF CU ORE WAS MINED. N OF ROAD A VEIN 2 FT. THICK IN A BASIC DIKE OF UNKNOWN WIDTH, STRIKING N IN OUTCROP FOR 525 FT. IN THE CENTER. A 3 FT. VEIN DIPS N, CONTAINS CU SULFIDES, MOLY, AU, AG.

Economic information about the deposit and operations

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

Comments on the production information

  • NO OTHER PRODUCTION RECORD FOUND.

Workings at the site

  • Type of workings Unknown
    Overall depth 54.86M

Reference information

Bibliographic references

  • Deposit

    AVERILL, C. V., 1942 , MINES AND MINERAL RESOURCES OF SIERRA CO.: CDM CALIF. JOUR. MINES AND GEOL., VOL. 38 , NO. 1 , P. 65 .

  • Deposit

    LOGAN, C. A., 1929 , SIERRA CO.: CDMM 25TH REPORT STATE MINERALOGIST, APRIL, P. 170 , 171 .

  • Production

    LOGAN, 1929

General comments

Subject category Comment text
Deposit VEIN, POCKET

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1979 Hayden, F. (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.