The Black Butte Iron is a iron mine located in Madison county, Montana at an elevation of 7,999 feet.
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
Elevation: 7,999 Feet (2,438 Meters)
Commodity: Iron
Lat, Long: 44.89194, -111.72806
Map: View on Google Maps
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.
Black Butte Iron MRDS details
Site Name
Primary: Black Butte Iron
Secondary: Standard Creek
Commodity
Primary: Iron
Location
State: Montana
County: Madison
District: Unorganized
Land Status
Land ownership: National Forest
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
Not available
Workings
Not available
Ownership
Owner Name: U.S. Steel Corp
Owner Name: U.S. Steel Corp
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Year: 1957
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: M
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Gravelly Range
Mineral Deposit Model
Not available
Orebody
Form: TABULAR
Structure
Type: R
Description: On East Side Of Gravelly Syncline
Alterations
Alteration Type: L
Alteration Text: None
Rocks
Name: Iron Formation
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Name: Iron Formation
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic
Analytical Data
Not available
Materials
Ore: Magnetite
Ore: Hematite
Gangue: Hornblende
Gangue: Quartz
Comments
Comment (Commodity): GRADE RANGES BETWEEN 25 AND 35 PERCENT FE
Comment (Location): SECTION CORNERS NOT LOCATED - SECTION ESTIMATED
Comment (Reserve-Resource): THE CORE DRILLING BY U. S. STEEL ESTIMATES 90 MILLION TONS OF ORE TO 300 FT DEPTH.
Comment (Deposit): CORE DRILLING PROGRAM ACTIVE FROM 1971 TO 1975. U. S. STEEL APPLIED FOR PATENT ON A NUMBER OF LOCATED CLAIMS
Comment (Workings): TWO OR MORE PARALLEL ORE HORIZONS OVER A MILE IN LENGTH AND 100 FT WIDE ARE DEVELOPED BY CORE DRILLING
References
Reference (Deposit): BAYLEY R. W. & JAMES, H. L., 1973 , PRECAMBRIAN IRON FORMATIONS OF THE UNITED STATES: ECON. GEOL. V. 68 , NO. 7
Reference (Deposit): 1965 GEOLMAP H. L. JAMES & K. L. WEIR GEOL. MAP (OPEN FILE)
Reference (Deposit): CARR, M. S., GUILD, P. W., AND WRIGHT, W. B., 1967 , IRON IN THE UNITED STATES: USGS MR 51 WITH SECTION ON PRECAMBRIAN IRON FORMATIONS IN US BY BAYLEY, R. W., AND JAMES, H. L.
Reference (Deposit): 1967 COMPILE CARR. GUILD & WRIGHT (BAYLEY & JAMES, PUB. REPORT
Reference (Deposit): 1969 COMPILE MBMG UNPUBLISHED SUMMARY REPORT
Reference (Deposit): USGS OPEN FILE REPORT, PRELIMINARY GEOLOGIC MAP OF BLACK BUTTE IRON DEPOSIT, 1965; SUMMARY OF INFORMATION ON IRON ORE, BITUMINOUS COAL, FLUORITE, & CHROMITE, MBMG UNPUBLISHED SUMMARY
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.
