The Cruse Mine is a 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.
Cruse Mine MRDS details
Site Name
Primary: Cruse Mine
Secondary: Bald Mountain Mine
Commodity
Primary: Gold
Primary: Silver
Secondary: Copper
Secondary: Zinc
Secondary: Lead
Location
State: Montana
County: Lewis and Clark
District: Marysville District
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Not available
Production
Year: 1948
Time Period: 1909-1948
Mined: 140000.000 mt
Material type: ore
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Polymetallic veins, Au-Ag
Operation Type: Unknown
Years of Production:
Organization:
Significant: Y
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Mineral Deposit Model
Model Name: Polymetallic veins
Orebody
Not available
Structure
Type: R
Description: Boulder Batholith
Type: L
Description: Marysville Stock
Alterations
Alteration Type: L
Alteration Text: Oxidation And Leaching
Rocks
Name: Diorite
Role: Associated
Description: QUARTZ DIORITE
Age Type: Associated Rock
Age Young: Late Cretaceous
Name: Diorite
Role: Associated
Description: QUARTZ DIORITE
Age Type: Host Rock
Age Young: Late Cretaceous
Name: Diorite
Role: Associated
Description: QUARTZ DIORITE
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Name: Diorite
Role: Associated
Description: QUARTZ DIORITE
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Gold
Gangue: Quartz
Comments
Comment (Location): 0.9 KM E OF MT BELMONT.
Comment (Development): 70% OF THE AU AND AG RECOVERED AT THE MILL, THE TAILINGS WENT TO A CYANIDE PLANT.
Comment (Workings): 20 STAMP MILL ON PROPERTY IN 1911 . 3 TUNNELS, TUNNEL NO 1 IS THE WORKING ADIT AND IT IS IN THE QUARTZ DIORITE, THE 2ND AND 3RD TUNNELS ARE IN THE HORNSTONE.
Comment (Production): RICH PRODUCER (1911)
Comment (Deposit): VEIN FORKS AND NARROWS UPON ENTERING HORNSTONE. ORE VALUE DECREASES WITH DEPTH
Comment (Deposit): Merged data from Deposit ID's: 10245403 (Cruse Mine) 10221489 (Belmont Mine) 10124475 (Bald Mountain Mine)
References
Reference (Deposit): USGS BULL 527, P. 72.
Reference (Deposit): USGS BULL 842, P. 63, PL. 5.
Reference (Deposit): USGS PP 57, P. 164, PL. 1
Reference (Production): USGS BULL 842, P. 63.
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.
