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  3. Mineral Resource Data System (MRDS)

Mina Rica

Past Producer in Placer county in California, United States with commodities Gold, Silver
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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. Mining district
  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 10101346
MRDS ID C012170
Record type Site
Current site name Mina Rica
Alternate or previous names Minna Ricca

Geographic coordinates

Geographic coordinates: -121.10992, 38.89739 (WGS84)
Elevation 305
Relative position 1 MI. NE 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 17 California

Comments on the location information

  • UTM ACC N 1/2 , N 1/2 , NW 1/4 , AND NE 1/4

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Materials information

Materials Type of material
Gold Ore
Pyrite Ore
Quartz Gangue

Host and associated rocks

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

Nearby scientific data

(1) -121.10992, 38.89739
ListMap

Economic information

Ore body information

  • Strike NE
    Dip 87 SE
    Thickness 4.88M

Economic information about the deposit and operations

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

Mining district

District name Ophir

Comments on the production information

  • NO OTHER PRODUCTION RECORD FOUND

Workings at the site

  • Type of workings Surface/Underground
    Length 121.92M
    Overall depth 83.21M

Comments on the workings information

  • SHAFTS, DRIFTS

Reference information

Bibliographic references

  • Deposit

    LOGAN, C. A., 1936 , GOLD MINES OF PLACER COUNTY, CALIFORNIA: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 32 , NO. 1 , P. 28 .

  • Deposit

    HOBSON, J. B., 1890 , PLACER COUNTY: REPORT 10 OF THE STATE MINERALOGIST, CALIFORNIA DIVISION OF MINES AND GEOLOGY, P. 433 .

  • Deposit

    LINDGREN, W., 1894 , THE GOLD-SILVER VEINS OF OPHIR, CALIFORNIA: 14TH ANNUAL REPORT OF THE UNITED STATES GEOLOGICAL SURVEY, PART 2 , P. 263 , 272 .

  • Deposit

    WARING, CLARENCE A., 1917 , PLACER COUNTY: REPORT 15 OF THE STATE MINERALOGIST, CALIFORNIA STATE MINING BUREAU, P. 345 .

  • Production

    LOGAN ( 1936 )

General comments

Subject category Comment text
Deposit VEIN, AVG. 22 IN. THICK, W/SULFIDES.
Deposit PATENTED AS PART OF DALIGHT CLAIM ; INFO.SRC : 1 PUB LIT

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.