East Grey Rock Mine

Past Producer in Silver Bow county in Montana, United States with commodities Copper, Silver, Zinc, Arsenic
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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Economic information about the deposit and operations
  14. Mining district
  15. Workings at the site
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10012442
MRDS ID D008077
Record type Site
Current site name East Grey Rock Mine

Geographic coordinates

Geographic coordinates: -112.52422, 46.0249 (WGS84)
Relative position 1.4 KM WNW 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
Copper Primary
Silver Secondary
Zinc Critical Secondary
Arsenic Critical Tertiary

Materials information

Materials Type of material
Bornite Ore
Chalcocite Ore
Chalcopyrite Ore
Covellite Ore
Enargite Ore
Sphalerite Ore
Pyrite Gangue
Quartz Gangue

Alteration

  • (Local) Hydrothermal

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) Granitic rock

Economic information

Geologic structures

Type of structure Regional
Structure description Boulder Batholith

Ore body information

  • Width 9.14M

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 487.68M

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit THIS MINE HAS THE COVELLITE, SISTERS, DERNIER, VALE, AND GREYROCK VEINS. THE SISTERS VEIN HAS A DIP OF 60 S. VALE VEIN IS UNDER GREYROCK VEIN. THE DERNIER RUNS PARALLEL TO COVELLITE VEIN. COVELLITE VEIN'S STRIKE NW. SISTER'S VEIN IS 3-5 FT, STRIKE N 50 W, DIP 61 S.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1981 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