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  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Coau

Past Producer in Nevada 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. 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 10101222
MRDS ID C011089
Record type Site
Current site name Coau
Related records 10115565

Geographic coordinates

Geographic coordinates: -121.06604, 39.27933 (WGS84)
Elevation 732
Relative position 3 MI WNW NEVADA CITY

Site location context

Political divisions (FIPS codes)

Nevada(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Nevada City(quadrangle 1:24,000 scale)

Yuba City(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)

Geographic areas

Country State County
United States California Nevada

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 016N 008E 03 California

Comments on the location information

  • UTM EST. SW 1/4 NE 1/4

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Gold Ore
Pyrite Ore

Analytical data

Result SULFIDES - $40 - $100/TON

Host and associated rocks

  • Host or associated Associated
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
    Rock unit name Calaveras Complex
    Rock description Calaveras Complex
    Stratigraphic age (youngest) Pennsylvanian
    Stratigraphic age (youngest) Pennsylvanian
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite

Nearby scientific data

(1) -121.06604, 39.27933
ListMap

Economic information

Ore body information

  • Strike N 75 W
    Dip 45 N
    Thickness 6.1M
    Depth to top 0M

Comments on the geologic information

  • NEAR CONTACT W/METAMORPHOSED CALAVERAS SLATE

Economic information about the deposit and operations

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

Mining district

District name Nevada City

Workings at the site

  • Type of workings Underground
    Length 618.74M
    Overall depth 152.4M

Comments on the workings information

  • SHAFT, 3 LEVELS, DRIFTS

Reference information

Bibliographic references

  • Deposit

    MACBOYLE, E., 1919 , MINES AND MINERAL RESOURCES OF NEVADA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 16 , P. 143 - 144

General comments

Subject category Comment text
Deposit VEIN, PROBABLE WESTERN EXTENSION OF URAL-CHAMPION VEIN. AVG 3 FT THICK, RANGES 1 - 20 FT.
Deposit PATENTED 21 ACRES. ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1979 Bowman, J. And Albers, J. 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.