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West Grey Rock Mine

Past Producer in Silver Bow county in Montana, United States with commodities Silver, Copper, Zinc, 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. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  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 10012441
MRDS ID D008075
Record type Site
Current site name West Grey Rock Mine

Geographic coordinates

Geographic coordinates: -112.52589, 46.02629 (WGS84)
Location accuracy 250(meters)
Relative position 1.8 KM NW 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 Montana

Commodities

Commodity Importance
Silver Primary
Copper Primary
Zinc Critical Secondary
Arsenic Critical Tertiary

Materials information

Materials Type of material
Bornite Ore
Chalcocite Ore
Covellite Ore
Enargite Ore
Sphalerite 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 (Boulder Batholith)
    Rock description Butte Quartz Monzonite (Boulder Batholith)
    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) -112.52589, 46.02629
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Boulder Batholith

Ore body information

  • Strike N 45-60 W
    Dip 87 S

Comments on the geologic information

  • N 80 W FAULT CUTS THE VEINS WITH A VERY STEEP D1B

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

Comments on the production information

  • AMOUNT OF PRODUCTION UNKNOWN.

Workings at the site

  • Type of workings Underground
    Overall depth 213.36M

Comments on the workings information

  • SOME OF THE MINE IS FLOODED.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit 5 VEINS THAT STRIKE NW AND ARE DEVELOPED WITHIN A WIDTH OF 200 FT. 4 ARE CLASSED AS AG VEINS. THE 5TH VEIN CONTAINS IMPORTANT CU VALUES. ALL CARRY CU IN UPPER LEVELS BUT CHANGE TO NORMAL AG VEINS IN DEPTH.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-81 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.

External references

Maps centered on this site