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  3. Mineral Resource Data System (MRDS)

Colombia Cons Qtz

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. Land status
  14. Workings at the site
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10007591
MRDS ID C011830
Record type Site
Current site name Colombia Cons Qtz
Related records 10261820

Geographic coordinates

Geographic coordinates: -120.74936, 39.356 (WGS84)
Elevation 951
Relative position 2.5 MI E WASHINGTON

Site location context

Political divisions (FIPS codes)

Nevada(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Blue Canyon(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 017N 011E 09,04 California

Comments on the location information

  • UTM ACC. E 1/2 NW 1/4 SEC. 9

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Analytical data

Result 0.25 - 0.30 OZ AU/TON FROM LODE

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Calaveras Complex;Calaveras Complex;Calaveras Complex
    Rock description Calaveras Complex;Calaveras Complex;Calaveras Complex

Nearby scientific data

(1) -120.74936, 39.356
ListMap

Economic information

Ore body information

  • Thickness 6.1M
    Depth to top 0M

Comments on the geologic information

  • CALAVERAS (BLUE CANYON) SLATER QUARTZITE

Economic information about the deposit and operations

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

Mining district

District name Washington

Land status

Ownership category National Forest

Workings at the site

  • Type of workings Underground
    Length 213.36M

Comments on the workings information

  • TUNNEL & DRIFTS.

Reference information

Bibliographic references

  • Deposit

    LOGAN, C. A., 1941 , MINERAL RESOURCES OF NEVADA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 37 , NO. 3 , PL. 3 .

  • Deposit

    SOUTHERN PACIFIC COMPANY, 1964 , MINERALS FOR INDUSTRY, NORTHERN CALIFORNIA, V. 2 , P. 32 .

  • Deposit

    MACBOYLE, E., 1919 , MINES AND MINERAL RESOURCES OF NEVADA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 16 , P. 145 - 146 .

General comments

Subject category Comment text
Deposit VEINS, 4 , 5 - 20 FT THICK AVG. 6 FT ABOUT 1 % SULFIDES
Deposit PATENTED 89.291 AC. ACTIVE PRIOR TO 1920 . ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-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.