The Pentfield Lode is a molybdenum mine located in Silver Bow county, Montana at an elevation of 6,558 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: 6,558 Feet (1,999 Meters)
Commodity: Molybdenum
Lat, Long: 45.85722, -112.44667
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.
Pentfield Lode MRDS details
Site Name
Primary: Pentfield Lode
Commodity
Primary: Molybdenum
Location
State: Montana
County: Silver Bow
District: Summit Valley District
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Owner Name: R. T. Ogle
Production
Not available
Deposit
Record Type: Site
Operation Category: Prospect
Operation Type: Unknown
Discovery Year: 1921
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Mineral Deposit Model
Not available
Orebody
Form: IRREGULAR
Structure
Not available
Alterations
Not available
Rocks
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Molybdenite
Gangue: Limonite
Gangue: Quartz
Gangue: Pyrite
Comments
Comment (Commodity): APPARENTLY, LARGE QUANTITIES OF MO ORE HAS BEEN MINED FROM THIS SHAFT
Comment (Location): ONE OF A GROUP
Comment (Workings): THE TUNNEL ALSO HAS AN 8 FT CROSSCUT AND AN 18 FT RAISE. MOST OF THE ORE HAD BEEN TAKEN FROM THIS RAISE
References
Reference (Deposit): 1934 DIREXPL DEPT. OF INTERIOR
Reference (Deposit): 1949 DIREXPL USFS
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.
