The North Star is a silver and copper mine located in Granite 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.
North Star MRDS details
Site Name
Primary: North Star
Commodity
Primary: Silver
Primary: Copper
Tertiary: Tungsten
Location
State: Montana
County: Granite
District: Philipsburg (Granite-Flint Creek) District
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Flint Creek Range
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: R
Description: Philipsburg Batholith
Type: L
Description: Philipsburg Anticline, Philipsburg Overthrust
Alterations
Not available
Rocks
Name: Limestone
Role: Host
Age Type: Host Rock
Age Young: Late Devonian
Analytical Data
Analytical Data: 4-7% CU, 1.7 OZ/TON AG
Materials
Ore: Powellite
Ore: Scheelite
Comments
Comment (Location): SW SLOPE OF POORMAN HILL.
Comment (Production): 4.0-7.0 CU, 1.7 OZ/TON AG
Comment (Deposit): BEDDING STRIKES NE AND DIPS 35 NW. SCHEELITE AND POWELLITE ARE DISSEMINATED THROUGH A GANGUE OF ALTERED SEDIMENTARY ROCK AND AS SMALL PODS ERRATICALLY DISTRIBUTED IN AND ALONG FRACTURES IN THE JEFFERSON FM. MINERALIZATION MAY FOLLOW THE MAYWOOD-JEFFERSON CONTACT OR FRACTURES THAT INTERSECT IT. A 4 FT IRON-STAINED, VUGGY, VERTICAL QUARTZ VEIN STRIKING W AND CONTAINING DISSEMINATED SCHEELITE, WAS EXPOSED IN SHORT ADIT N OF ADIT 2.
Comment (Workings): 75 FT ADIT, 260 FT ADIT, 425 FT ADIT, 2 CAVED SHAFTS AND A SHORT ADIT N OF ADIT 2. BULLDOZER CUTS, ONE CUT ALMOST TAKES AWAY ADIT 1.
References
Reference (Production): USBM RI 5612, P. 21.
Reference (Deposit): USBM RI 5612, P. 21, 23, 24
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.
