1. Mineral Resources
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  3. Mineral Resource Data System (MRDS)

Unnamed

Past Producer in Placer county in California, United States with commodities Gold, Silver, Arsenic
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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. Economic information about the deposit and operations
  11. Workings at the site
  12. Links to other databases
  13. Bibliographic references
  14. General comments
  15. Reporter information

Geologic information

Identification information

Deposit ID 10007731
MRDS ID C012284
Record type Site
Current site name Unnamed
Related records 10261246

Geographic coordinates

Geographic coordinates: -120.99686, 39.06322 (WGS84)
Elevation 622
Relative position 2 MI. NW WEIMAR

Site location context

Political divisions (FIPS codes)

Placer(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Colfax(quadrangle 1:24,000 scale)

Truckee(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Bear(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Placer

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 014N 009E 17 California

Comments on the location information

  • UTM ACC. NW1/4 SE1/4

Commodities

Commodity Importance
Gold Primary
Silver Secondary
Arsenic Critical Secondary

Materials information

Materials Type of material
Gold Ore
Pyrite Ore
Tetrahedrite Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Conglomerate

Nearby scientific data

(1) -120.99686, 39.06322
ListMap

Economic information

Economic information about the deposit and operations

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

Comments on the production information

  • OWNER REPORTS 35 CENTS AU/TON BY CHEMICAL ANALYSIS. CLAIMS $150 AU/TON BY ROASTING ORE FIRST

Workings at the site

  • Type of workings Underground
    Overall depth 15.24M

Comments on the workings information

  • SHAFT

Reference information

Bibliographic references

  • Deposit

    CHANDRA, D. B., 1961 , GEOLOGY AND MINERAL DEPOSITS OF THE COLFAX AND FORRESTHILL QUADRANGLES, CALIFORNIA: SPECIAL REPORT 67 , CALIFORNIA DIVISION OF MINES, P. 48 . , P1.3, P1.3

  • Production

    CHANDRA ( 1961 )

General comments

Subject category Comment text
Deposit VEIN

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1979 Nelson, Scott C. (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.