Copper State Mine

Past Producer in Granite county in Montana, United States with commodities Copper, Gold, Silver
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. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Links to other databases
  18. Bibliographic references
  19. Reporter information

Geologic information

Identification information

Deposit ID 10019278
MRDS ID DC09370
Record type Site
Current site name Copper State Mine
Alternate or previous names Hoffman Property

Geographic coordinates

Geographic coordinates: -113.25648, 46.49156 (WGS84)
Elevation 1634
Relative position 2.5 KM NW OF MAXVILLE.

Site location context

Political divisions (FIPS codes)

Granite(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Henderson Mountain(quadrangle 1:24,000 scale)

Philipsburg(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Flint-Rock(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 Granite

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 008N 013W 05 NE OF NE Montana

Comments on the location information

  • ON E SLOPE OF SMART CREEK. ; INFO FROM LAND.ST :(1971)

Commodities

Commodity Importance
Copper Primary
Gold Secondary
Silver Secondary

Materials information

Materials Type of material
Copper Ore
Iron Ore
Quartz Gangue

Alteration

  • (Local) Oxidation

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Silver Hill Formation
    Rock description Silver Hill Formation
    Stratigraphic age (youngest) Late Cambrian
    Stratigraphic age (youngest) Late Cambrian

Nearby scientific data

(1) -113.25648, 46.49156

Economic information

Geologic structures

Type of structure Regional
Structure description Philipsburg Anticline, Philipsburg Batholith

Controls for ore emplacement

  • Shattered Limestone Impregnated With Iron, Copper Oxides And Carbonates.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of last production 1906

Mining district

District name Maxville District

Land status

Ownership category National Forest

Ownership information

  • Type Operator
    Owner Oscar Hoveland
    Home office Maxville, Mt.

Comments on the production information

  • $2000 OF ORE (1890-1900). PRODUCTION WAS RECORDED IN 1927 AND 1930. IN 1930 SEVERAL CARS OF OXIDIZED ORE CONTAINING ABOUT 12% CU.AND A LITTLE AU AND AG

Comments on the workings information

  • SHORT TUNNELS AND SHAFTS, INACCESSIBLE IN 1907.

Comments on development

  • 75-TON ROASTING, LEACHING, AND PRECIPITATION PLANT WAS BUILT IN 1929 TO TREAT THE LOW GRADE ORE

Reference information

Bibliographic references

  • Deposit

    USGS PP 78, P. 260.

  • Deposit

    MBMG GEOLOGIC MAP OF THE NW FLANK OF THE FLINT CREEK RANGE

  • Deposit

    MBMG BULL 49, P. 13.

  • Deposit

    USGS-USBM MINERAL YEARBOOKS 1927, 1930.

  • Production

    USGS PP 78, P. 260. USGS-USBM MINERAL YEARBOOKS 1927, 1930

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1974 Unknown U.S. Geological Survey
Updater 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