Big Blackfoot

Plant in Lewis and Clark county in Montana, United States with commodities Gold, Lead, 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. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Geologic structures
  13. Economic information about the deposit and operations
  14. Mineral rights holdings
  15. Land status
  16. Ownership information
  17. Reserves and resources
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10172743
MAS/MILS ID 0300490422
Record type Site
Current site name Big Blackfoot
Alternate or previous names Blackfoot Underground

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -112.75701, 46.94319 (WGS84)
Location accuracy 10000(meters)

Site location context

Political divisions (FIPS codes)

Lewis and Clark(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Moose Creek(quadrangle 1:24,000 scale)

Elliston(quadrangle 1:100,000 scale)

Butte(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Blackfoot(hydrologic unit)

Pend Oreille(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Helena-Lewis and Clark 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 Lewis and Clark

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 014 N 009 W 14 Montana

Commodities

Commodity Importance
Gold Primary
Lead Primary
Silver Primary

Materials information

Materials Type of material
Gold Ore
Galena Ore
Tetrahedrite Ore

Alteration

  • (Local) OXIDATION

Mineral occurrence model information

Model code 153
USGS model code 25c + 25d
Deposit model name Epithermal vein, quartz adularia
Mark3 model number 25

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Argillite
    Rock unit name BELT GROUP
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name BELT GROUP
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Quartz Monzonite
    Rock unit name OGDEN MOUNTAIN QUARTZ MONZONITE STOCK

Nearby scientific data

Ore Body (1) -112.75701, 46.94319

Economic information

Geologic structures

Type of structure Regional
Structure name BOULDER BATHOLITH; E LIMB OF LARGE ANTICLINE; N-TRENDING FAULTS CUT BY NE-T
Type of structure Local
Structure name OGDEN MOUNTAIN QUARTZ MONZONITE

Comments on the geologic information

  • THE AREA HAS BEEN INTRUDED BY STOCKS, DIKES, AND SILLS WHICH ARE PROBABLY OUTLIERS OF THE BOULDER BATHOLITH

Economic information about the deposit and operations

Operation type Surface
Development status Plant
Commodity type Metallic
Significant Yes
Plant type Leach

Mineral rights holdings

Type of mineral rights Unknown

Land status

Ownership category Unknown

Ownership information

  • Type Owner-Operator
    Owner Focal Resources Ltd.
    Interest 100
    Year 1996
  • Type Owner-Operator
    Owner Sunshine Mining Co.
    Interest 100
    Home office Idaho
    Year 1988

Reserves and resources

  • Type In-situ
    Estimate year 1998
    Total resources 8170000mt ore

Reference information

Bibliographic references

  • Deposit

    AVERY, D.W. MONTANA DIRECTORY - IN PREP.

  • Deposit

    ROCKY MOUNTAIN PAYDIRT. SUNSHINE TO DEVELOP BIG BLACKFOOT

  • Deposit

    GOLD MINE IN MT. NOV. 1987, P. 12A.

  • Deposit

    SPOKESMAN REVIEW (SPOKANE, WA). GOLD PROJECT'S VALUE CUT. JAN. 29, 1992.

  • Deposit

    MINING RECORD. INLAND GOLD ADJUSTS VALUE OF BIG BLACKFOOT PROJECT. FEB. 5, 1992.

  • Deposit

    RANDOL MINING DIRECTORY, 1996/97, U.S. MINES AND MINING COMPANIES, P215.

  • Deposit

    MBMG BULL 98, P. 40-45

  • Deposit

    USBM RI 6334, P. 51-53.

General comments

Subject category Comment text
Deposit SEE MAS PROPERTY FILE BLACKFOOT SEQ #0300490153 FOR UNDERGROUND DATA AND BIBLIOGRAPHY.

Reporter information

Type Date Name Affiliation Comment
Reporter 02-MAR-98 Buckingham, David A. U.S. Bureau of Mines

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references