Minneapolis Mine

Past Producer in Jefferson county in Montana, United States with commodities Silver, Lead, Zinc, Copper, Gold, 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. Host and associated rocks
  9. Nearby scientific data
  10. Controls for ore emplacement
  11. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  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 10013398
MRDS ID D009668
Record type Site
Current site name Minneapolis Mine

Geographic coordinates

Geographic coordinates: -112.23477, 46.29796 (WGS84)
Elevation 1859
Location accuracy 250(meters)
Relative position 5.2 KM SW OF COMET.

Site location context

Political divisions (FIPS codes)

Jefferson(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Thompson(quadrangle 1:24,000 scale)

Butte North(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Boulder(hydrologic unit)

Missouri Headwaters(hydrologic accounting unit)

Missouri Headwaters(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Beaverhead-Deerlodge National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Montana Jefferson

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 006N 005W 04 Montana

Comments on the location information

  • ON DIVIDE BETWEEN CATARACT AND BIG LUMBER CREEKS. ; INFO FROM LAND.ST :(1950)

Commodities

Commodity Importance
Silver Primary
Lead Primary
Zinc Critical Primary
Copper Primary
Gold Secondary
Antimony Critical Tertiary

Materials information

Materials Type of material
Galena Ore
Gold Ore
Sphalerite Ore
Tetrahedrite Ore
Pyrite Gangue
Quartz Gangue

Analytical data

Result N VEIN: 13% PB, 13% ZN, 0.5% CU, 6 OZ/TON AG, $.40/TON AU
Result S VEIN: LESS PB & ZN, 1.5% CU, HIGHER AG
Result INTERMEDIATE VEIN: 20% PB, 2% ZN, 45 OZ/TON AG.

Host and associated rocks

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

Nearby scientific data

(1) -112.23477, 46.29796

Economic information

Controls for ore emplacement

  • Fractures

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1900

Mining district

District name Basin (Cataract, Comet) District

Land status

Ownership category National Forest

Workings at the site

  • Type of workings Underground
    Length 1219.2M

Comments on the workings information

  • 400 FT ADIT, 1400 FT ADIT, DRIFTS, CROSSCUTS, PORTALS CAVED (1950).

Reference information

Bibliographic references

  • Deposit

    USGS BULL 842, P. 289-90.

  • Deposit

    MBMG BULL 16, P. 34-35.

  • Deposit

    USGS PP 428, P. 91, PL. 1.

  • Deposit

    CONSV. DIV. COMP. DATE, 12-11-1961

  • Production

    MBMG BULL 16, P. 104.

General comments

Subject category Comment text
Deposit COMPLEY MINERALIZED ZONE MORE THAN 120 FT WIDE IN THE LOWER CROSSCUT. OVERALL STRIKE OF THE ZONE ON THE SURFACE IS N 75 E. PYRITE, SPHALERITE AND GALENA ARE CONCENTRATED IN BANDS UP TO 6 FT WIDE. MOST BANDS STRIKE EAST. THE SOUTHERN AND CENTRAL PARTS OF THE VEIN ARE SEPARATED BY A QUARTZ PORPHYRY DIKE. VEIN IS BORDERED ON S BY STEEPLY DIPPING FAULT ZONE. N AND INTERMEDIATE VEINS ARE N OF DIKE, THE INTERMEDIATE VEIN CONTAINS TETRAHEDRITE, THE S VEIN CONTAINS CHALCOPYRITE AND IS S OF THE DIKE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-74 Unknown U.S. Geological Survey
Updater 01-AUG-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