Cape Nome Mine

Past Producer in Missoula county in Montana, United States with commodities Copper, Silver, Gold, Lead, Barium-Barite, Arsenic, Antimony
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. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Ownership information
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10071384
MRDS ID W014729
Record type Site
Current site name Cape Nome Mine
Alternate or previous names Bullion, Moose
Related records 10148746

Geographic coordinates

Geographic coordinates: -113.654, 46.78933 (WGS84)
Elevation 1524
Location accuracy 250(meters)
Relative position ABOUT 3 MILES NE FROM CLINTON, MONTANA

Site location context

Political divisions (FIPS codes)

Missoula(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Clinton(quadrangle 1:24,000 scale)

Missoula East(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 Missoula

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 012N 016W 17,18,19 SE (18) Montana

Comments on the location information

  • ON SE SIDE OF TRAIL CR.

Commodities

Commodity Importance
Copper Primary
Silver Primary
Gold Secondary
Lead Secondary
Barium-Barite Critical Tertiary
Arsenic Critical Tertiary
Antimony Critical Tertiary

Materials information

Materials Type of material
Bornite Ore
Chalcocite Ore
Chalcopyrite Ore
Enargite Ore
Galena Ore
Gold Ore
Malachite Ore
Tetrahedrite Ore
Barite Gangue
Limonite Gangue
Pyrite Gangue
Quartz Gangue
Siderite Gangue

Alteration

  • (Local) Oxidation To Deepths Of 100-300 Ft

Analytical data

Result 1.6-12.7% CU, $0.20-4.50/TON AU, 5-20OZ/TON AG, (ON 300 LEVEL)
Result 2.5% CU, 6OZ/TON AG, (ON 500 LEVEL)

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Clinton Stock
    Rock description Clinton Stock
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
    Rock unit name Pilcher Quartzite;Garnet Range Formation
    Rock description Pilcher Quartzite;Garnet Range Formationt
  • Host or associated Host
    Rock type Metamorphic Rock > Schist

Nearby scientific data

(1) -113.654, 46.78933

Economic information

Geologic structures

Type of structure Regional
Structure description Bearmouth Overthrust
Type of structure Local
Structure description Series Of North-Striking Faults, Clinton Stockclinton Stock

Ore body information

  • General form SHOOTS OR LENSES
    Strike NE
    Dip 60 NW
    Length 500M
    Width 0.61M

Controls for ore emplacement

  • Mineralization Localized Along Large Continuous Shear Zone - Concentrated In Areas Of Maximum Parallel Fracturing

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Small
Significant No
Discovery year 1897

Mining district

District name Clinton District

Ownership information

  • Type Operator
    Owner Silver Ledge, Inc.
    Home office Box 56, Clinton, Mt 59825
  • Type Owner
    Owner Hera, Inc.
    Home office Box 40, Missoula, Mt 59801

Comments on the production information

  • SEVERAL SIPMENTS OF COPPER-SULFIDE ORE IN 1921

Workings at the site

  • Type of workings Underground
    Length 1524M
    Overall depth 150M

Comments on the workings information

  • MINE DEVELOPED BY THE 500 FT TWO COMPARTMENT CAPE NOME SHAFT, AN UPPER ADIT AND LOWER ADIT, AND CROSSCUTS AND DRIFTS ON THE 300 AND 500 LEVELS

Reference information

Bibliographic references

  • Deposit

    USGS BULL 660, P. 227-8.

  • Deposit

    MBMG BULL 30, P. 32.

  • Deposit

    MBMG BULL 8, P. 9, 12, 35, PL. 6.

  • Deposit

    MBMG BULL 82,

  • Deposit

    MBMG BULL 40,

  • Production

    SAHINEN, 1957, M.B.M.G. BULL. 8.

General comments

Subject category Comment text
Deposit VEIN IS CUT AND DISPLACED BY VERTICLE NE FAULTS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1976 Mlynarczyk, Meg S. U.S. Geological Survey
Updater 01-APR-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