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
Satelite View
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
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 definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
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.
Principal Gold Districts of Montana
In Montana, 54 mining districts have each have produced more than 10,000 ounces of gold. The largest producers are Butte, Helena, Marysville, and Virginia City, each having produced more than one million ounces. Twenty seven other districts are each credited with between 100,000 and one million ounces of gold production. Read more: Principal Gold Districts of Montana.
