The Ottawa Mine is a tungsten 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.
Ottawa Mine MRDS details
Site Name
Primary: Ottawa Mine
Secondary: Prentice Property
Commodity
Primary: Tungsten
Secondary: Copper
Location
State: Montana
County: Lewis and Clark
District: Marysville District
Land Status
Not available
Holdings
Not available
Workings
Type: Surface/Underground
Ownership
Owner Name: Ottawa Tungsten Co.
Production
Not available
Deposit
Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Year: 1900
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Mineral Deposit Model
Not available
Orebody
Form: LENS
Structure
Type: R
Description: Boulder Batholith
Type: L
Description: Marysville Stock
Alterations
Not available
Rocks
Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Analytical Data
Analytical Data: WO3 PERCENTAGES GO FROM TRACE TO 3.05%.
Materials
Ore: Chalcopyrite
Ore: Scheelite
Gangue: Pyrite
Gangue: Quartz
Comments
Comment (Location): LAT. LONG IS INTESECTION OF ALL 3 SECTIONS, N SLOPE OF DRUMLUMMON HILL.
Comment (Deposit): DISSEMINATED SCHEELITE OF 1/16 IN TO 1/4 IN IN DIAMETER.
Comment (Workings): 2 ADITS, 7 RAISES, TRENCHES
Comment (Deposit): Discovery Year: 1900 FOR ALL
Comment (Development): 1940 SCHEELITE DISCOVERED
References
Reference (Deposit): USBM REP INVES 6334, P. 5, 20, 22.
Reference (Deposit): DMEA RECORDS
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.
