The Cascade Mine is a gold 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.
Cascade Mine MRDS details
Site Name
Primary: Cascade Mine
Commodity
Primary: Gold
Secondary: Silver
Secondary: Copper
Tertiary: Antimony
Location
State: Montana
County: Granite
District: Garnet (First Chance) District
Land Status
Not available
Holdings
Not available
Workings
Type: Surface/Underground
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: Garnet Range
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: R
Description: Bearmouth Overthrust
Type: L
Description: Deep Creek Anticline, Garnet Stock
Alterations
Alteration Type: L
Alteration Text: Sericitazation, Oxidation
Rocks
Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Tetrahedrite
Ore: Chrysocolla
Ore: Gold
Ore: Chalcopyrite
Ore: Malachite
Gangue: Pyrite
Gangue: Sericite
Gangue: Quartz
Gangue: Iron
Gangue: Limonite
Comments
Comment (Production): $6000. FROM STOPES IN UPPER TUNNEL AND PITS ALONG OUTCROP
Comment (Location): IN A BASIN AT THE HEAD OF KEARNS GULCH.
Comment (Deposit): LIMESTONE AND SHALE ARE REGARDED AS FRAGMENTS SUSPENDED IN THE GRANODIORITE.
Comment (Workings): 2 ADIT LEVELS AT 5870 AND 5950 FT ELEVATIONS. OPEN PITS. THE LOWER ADIT IS DRIVEN S. 400FT IN GRANODIORITE, 50 FT IN LIMESTONE AND AFTER CROSSING DIKE OF GRANODIORITE ENDS IN SHALE.
Comment (Deposit): 2 ADIT LEVELS TOTALING SEVERAL 100 FEET. ; INFO.SRC : 1 PUB LIT
Comment (Location): Political location in record is Granite county. The MRDS location-problem GIS test indicated the lat/long falls in adjacent Missoula county. However, the topo sheet, Google Earth, and County100 coverage plot it 780m inside Granite county. The true location is probably in Granite county, but the location comment IN A BASIN AT THE HEAD OF KEARNS GULCH and the relative position information 1.2 KM NW OF GARNET indicate a location several hundred meters to the NW of the current lat/long. Kearns Creek is found in geonames. Duplicate record 10172997 lat/long agrees with this information. During duplicate reduction, the the duplicate record 10172997 location should be used.
References
Reference (Deposit): USGS BULL 660, P
Reference (Production): USGS BULL 660
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.
