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Colusa Mine

Past Producer in Silver Bow county in Montana, United States with commodities Copper, 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. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Ownership information
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10019551
MRDS ID DC10804
Record type Site
Current site name Colusa Mine
Alternate or previous names East Colusa Pit

Geographic coordinates

Geographic coordinates: -112.50783, 46.02407 (WGS84)
Relative position W EDGE OF MEADERVILLE.

Site location context

Political divisions (FIPS codes)

Silver Bow(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Butte North(quadrangle 1:24,000 scale)

Butte North(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Clark Fork(hydrologic unit)

Pend Oreille(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(hydrologic region)

Geographic areas

Country State County
United States Montana Silver Bow

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 003N 007W 07 SE OF SE Montana

Commodities

Commodity Importance
Copper Primary
Silver Secondary

Materials information

Materials Type of material
Chalcocite Ore
Enargite Ore
Limonite Gangue
Pyrite Gangue
Quartz Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Stratigraphic age (youngest) Pliocene
    Stratigraphic age (youngest) Pliocene
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Boulder Batholith
    Rock description Boulder Batholith
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -112.50783, 46.02407
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Boulder Batholith
Type of structure Local
Structure description N 65 E

Ore body information

  • General form THE VEIN CONTINUES W BEYOND THE GAMBETTA FAULT AS THE SHANNON VEIN. THE GRANITE ACCOMPANYING THE LODE IS GENERALLY WELL SERICITIZED AND PEPPERED WITH PYRITE
    Thickness 12.19M
    Length 731.52M
    Width 12.19M
    Depth to top 0M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Significant No

Mining district

District name Butte District

Ownership information

  • Type Owner-Operator
    Owner The Anaconda Co.
    Home office Hennessy Bldg., Butte, Mt.

Comments on the workings information

  • PART OR ALL OF COLSA IS NOW IN THE BERKLEY PIT

Reference information

Bibliographic references

  • Deposit

    USGS PP 74, PL. X, P. 203.

  • Deposit

    MBMG BULL 10, P. 60.

  • Deposit

    USGS-USBM MINERAL YEARBOOKS 1955, 1956

  • Production

    USGS-USBM MINERAL YEARBOOK; USGS PP 74

General comments

Subject category Comment text
Deposit THE VEIN CONTINUES W BEYOND THE GAMBETTA FAULT AS TH

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1974 Unknown U.S. Geological Survey
Updater 01-FEB-1984 Wise, Kristine K. (Elliott, James E.) U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

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