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  3. Mineral Resource Data System (MRDS)

California

Past Producer in Placer 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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10007702
MRDS ID C012177
Record type Site
Current site name California
Related records 10237125

Geographic coordinates

Geographic coordinates: -121.08659, 38.88433 (WGS84)
Elevation 335
Relative position 1 1/2 MI. E SE OPHIR

Site location context

Political divisions (FIPS codes)

Placer(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Auburn(quadrangle 1:24,000 scale)

Sacramento(quadrangle 1:100,000 scale)

Sacramento(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

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 012N 008E 16 California

Comments on the location information

  • UTM ACC. S 1/2

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Pyrite Ore
Quartz Gangue

Nearby scientific data

(1) -121.08659, 38.88433
ListMap

Economic information

Ore body information

  • Strike E
    Dip 40 S
    Thickness 0.61M

Economic information about the deposit and operations

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

Mining district

District name Ophir

Workings at the site

  • Type of workings Surface/Underground
    Overall length 30.48M

Reference information

Bibliographic references

  • Deposit

    LINDGREN, W., 1894 , THE GOLD-SILVER VEINS OF OPHIR, CALIFORNIA: 14TH ANNUAL REPORT OF THE UNITED STATES GEOLOGICAL SURVEY, PART 2 , P. 264 .

  • Deposit

    WARING, CLARENCE A., 1917 , PLACER COUNTY: REPORT 15 OF THE STATE MINERALOGIST, CALIFORNIA STATE MINING BUREAU, P. 335 - 6 .

General comments

Subject category Comment text
Deposit VEIN, 1 - 2 FT. THICK

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1979 Nelson, Scott C. (Albers, John, P.) U.S. Geological Survey PARSED HOST ROCK AND ASSOCIATED ROCK INFORMATION FROM OLD SINGLE VALUED FIELD TO NEW MULTIVALUED FIELD
Editor 27-APR-1995 Mosier, Dan 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.