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  3. Mineral Resource Data System (MRDS)

Number Three Mine

Past Producer in Silver Bow county in Montana, United States with commodities Copper, Silver, Gold, Arsenic
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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 10014493
MRDS ID D011294
Record type Site
Current site name Number Three Mine

Geographic coordinates

Geographic coordinates: -112.51339, 46.01157 (WGS84)
Location accuracy 500(meters)
Relative position NEAR THE SILVERBOW MINE. IN THE SW PART OF THE BERKELEY PIT

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 18 Montana

Commodities

Commodity Importance
Copper Primary
Silver Secondary
Gold Secondary
Arsenic Critical Tertiary

Materials information

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

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name Butte Quartz Monzonite
    Rock description Butte Quartz Monzonite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite

Nearby scientific data

(1) -112.51339, 46.01157
ListMap

Economic information

Ore body information

  • Strike EAST-WEST
    Dip 65 S
    Width 6.1M

Economic information about the deposit and operations

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

Mining district

District name Butte District

Workings at the site

  • Type of workings Underground
    Overall depth 335.28M

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit THE VEIN IS THE GLENGARRY. THE ORE MERGES INTO THE WALL ROCK EXCEPT WERE THE SECONDARY FRACTURES OCCUR. IN THE EASTERN WORKINGS THE VEIN INCREASE IN ITS PYRITE CONTENT UNTIL IT CARRIES LITTLE OR NO QUARTZ, EXCEPT WHERE FRACTURING AND LOCAL ENRICHMENT OCCURS. RICHER ORES EXTEND 300-350 FT BELOW THE OUTCROP. IT IS CUT AND DISPLACED BY SEVERAL LARGER AND NUMEROUS MINOR FAULTS.

Reporter information

Type Date Name Affiliation Comment
Reporter 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.

Maps centered on this site