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  3. Mineral Resource Data System (MRDS)

Colma Group

Past Producer in Shasta county in California, United States with commodity Copper
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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 10102965
MRDS ID M020460
Record type Site
Current site name Colma Group
Related records 10286788

Geographic coordinates

Geographic coordinates: -122.47527, 40.75152 (WGS84)
Elevation 732
Relative position 6 MILES W. OF KENNETT

Site location context

Political divisions (FIPS codes)

Shasta(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bohemotash Mountain(quadrangle 1:24,000 scale)

Redding(quadrangle 1:100,000 scale)

Redding(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Sacramento Headwaters(hydrologic unit)

Upper Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management CA)

Bureau of Land Management CA BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Shasta-Trinity 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 Shasta

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 033N;034N 005W;005W 06;31 California

Commodities

Commodity Importance
Copper Primary

Materials information

Materials Type of material
Chalcopyrite Ore
Pyrite Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite

Nearby scientific data

(1) -122.47527, 40.75152
ListMap

Economic information

Ore body information

  • General form TABULAR
    Thickness 0.91M

Economic information about the deposit and operations

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

Mining district

District name West Shasta Copper-Zinc

Land status

Ownership category National Forest

Comments on the production information

  • NO PRODUCTION REPORTED

Workings at the site

  • Type of workings Underground
    Length 914.4M

Comments on the workings information

  • CLAIMS DEVELOPED THROUGH NO. 5 TUNNEL LEVEL OF UNCLE SAM MINE TREND OF TUNNEL IS N 40 DEGREES E, IT INTERSECTS THE UNCLE SAM VEIN 1200 FT. FROM THE PORTAL 350 FT. BEYOND THIS VEIN, THE QUARTZ VEIN WAS CUT.

Reference information

Bibliographic references

  • Deposit

    LYDON, P. A. AND O'BRIEN, J. C., 1974 , MINES AND MINERAL RESOURCES OF SHASTA COUNTY, CALIF., COUNTY REPT. 6 , CALIF. DIV. MINES AND GEOLOGY, PG. 105

  • Deposit

    LOGAN, C. A., SHASTA COUNTY; 22ND REPT. STATE MIN., CALIF. MIN. BUR., PG. 148

General comments

Subject category Comment text
Deposit QUARTZ HEAVILY MINERALIZED WITH CHALCOPYRITE AND PYRITE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-APR-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.