Big Blackfoot

The Big Blackfoot is a lead, gold, and silver mine located in Lewis and Clark county, Montana.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Name: Big Blackfoot  

State:  Montana

County:  Lewis and Clark

Elevation:

Primary Mineral: Lead, Gold, Silver

Lat, Long: 46.9433, -112.75610

Map: View on Google Maps

Satelite View


Satelite image of the Big Blackfoot

Big Blackfoot MRDS details

Site Name

Primary: Big Blackfoot
Secondary: Blackfoot Underground


Commodity

Primary: Lead
Primary: Gold
Primary: Silver


Location

State: Montana
County: Lewis and Clark


Land Status

Land ownership: Unknown
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land or if it is in an area that is generally private property. It does not indicate a claim status and does not necessarily indicate an area is open to prospecting.


Holdings

Type: Unknown


Workings

Not available


Ownership

Owner Name: Sunshine Mining Co.
Percent: 100.0
Home Office: Idaho
Info Year: 1988

Owner Name: Focal Resources Ltd.
Percent: 100.0
Info Year: 1996


Production

Not available


Deposit

Record Type: Site
Operation Category: Plant
Deposit Type: Epithermal vein, quartz adularia
Plant Type: Leach
Operation Type: Surface
Mining Method: Unknown
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: Y


Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains


Mineral Deposit Model

Model Name: Epithermal vein, quartz adularia


Orebody

Not available


Structure

Type: L
Structure: OGDEN MOUNTAIN QUARTZ MONZONITE

Type: R
Structure: BOULDER BATHOLITH; E LIMB OF LARGE ANTICLINE; N-TRENDING FAULTS CUT BY NE-T


Alterations

Alteration Type: L
Alteration: OXIDATION


Rocks

Not available


Analytical Data

Not available


Materials

Ore: Tetrahedrite
Ore: Galena
Ore: Gold


Comments

Comment (Geology): THE AREA HAS BEEN INTRUDED BY STOCKS, DIKES, AND SILLS WHICH ARE PROBABLY OUTLIERS OF THE BOULDER BATHOLITH

Comment (Deposit): SEE MAS PROPERTY FILE BLACKFOOT SEQ #0300490153 FOR UNDERGROUND DATA AND BIBLIOGRAPHY.


References

Reference (Deposit): MBMG BULL 98, P. 40-45

Reference (Deposit): USBM RI 6334, P. 51-53.

Reference (Deposit): RANDOL MINING DIRECTORY, 1996/97, U.S. MINES AND MINING COMPANIES, P215.

Reference (Deposit): MINING RECORD. INLAND GOLD ADJUSTS VALUE OF BIG BLACKFOOT PROJECT. FEB. 5, 1992.

Reference (Deposit): GOLD MINE IN MT. NOV. 1987, P. 12A.

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

Reference (Deposit): ROCKY MOUNTAIN PAYDIRT. SUNSHINE TO DEVELOP BIG BLACKFOOT

Reference (Deposit): AVERY, D.W. MONTANA DIRECTORY - IN PREP.