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  3. Mineral Resource Data System (MRDS)

Oro Grande

Past Producer in Nevada county in California, United States with commodities Copper, 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. Nearby scientific data
  9. Ore body information
  10. Economic information about the deposit and operations
  11. Mining district
  12. Land status
  13. Ownership information
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10031988
MRDS ID M012012
Record type Site
Current site name Oro Grande
Related records 10188709

Geographic coordinates

Geographic coordinates: -120.5088, 39.40295 (WGS84)
Elevation 2240
Relative position 9 MILES NORTH OF CISCO

Site location context

Political divisions (FIPS codes)

Nevada(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

English Mountain(quadrangle 1:24,000 scale)

Truckee(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 Nevada

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 018N 013E 27 California

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Silver Secondary

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Malachite Ore
Pyrite Ore
Quartz Gangue

Nearby scientific data

(1) -120.5088, 39.40295
ListMap

Economic information

Ore body information

  • Strike N 85 W
    Dip 72 S
    Thickness 15.24M

Economic information about the deposit and operations

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

Mining district

District name Meadow Lake

Land status

Ownership category National Forest

Ownership information

  • Type Operator
    Owner J. P. Clark And F. J. Cook
    First year 1908

Comments on the production information

  • PRODUCTION OF COPPER LESS THAN 100,000 POUNDS. VALUES REPORTED, COPPER 5 PER CENT, GOLD $7, SILVER 3 OZ. WAS WORKED 45 YEARS PRIOR TO 1908.

Comments on the workings information

  • VERTICAL SHAFT 32 FT., 3-COMPARTMENT VERTICAL SHAFT 125 FT., 2-COMPARTMENT SHAFT, VERTICAL 105 FT.,200 FT. OF OPEN CUTS; 30-FT. ADIT ON VEIN.

Reference information

Bibliographic references

  • Deposit

    AUBURY, L. E., 1908 , COPPER RESOURCES OF CALIFORNIA BULL 50 ; CALIF. MIN. BUR., P. 199

  • Deposit

    MACBOYLE, E. 1918 , MINES AND MINERAL RESOURCES OF NEVADA COUNTY; 16TH REPT. STATE MIN.; CALIF. MIN. BUR., P 88

General comments

Subject category Comment text
Deposit GOSSAN IS IRON - STAINED PORPHYRY, THERE ARE 20 PARALLEL VEINS EXPOSED IN PLACES - CROPPINGS FOR 4500 FT., OXIDES FROM 1 - 10 FT. IN DEPTH.
Deposit WAS A FREE MILLING QUARTZ MINE UNTIL SULFIDE ZONE WAS REACHED COMPRISED OF 80 ACRES.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1973 Gere, W. U.S. Geological Survey
Updater 01-NOV-1978 Fraticelli, L. A. (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.