The Comstock Group is a silver and lead mine located in Jefferson 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.
Comstock Group MRDS details
Site Name
Primary: Comstock Group
Commodity
Primary: Silver
Primary: Lead
Secondary: Copper
Secondary: Zinc
Tertiary: Uranium
Location
State: Montana
County: Jefferson
District: Basin (Cataract, Comet) District
Land Status
Not available
Holdings
Not available
Workings
Type: Surface/Underground
Ownership
Owner Name: Howard Johnson, Butte. (Two Claims Pat) P.K. Williams, Helena, And W.L. Sand Quist And George Mayer,
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
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: R
Description: Boulder Batholith
Type: L
Description: Ne Striking Dacite Dike Cuts Granite And Vein
Alterations
Not available
Rocks
Name: Dacite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous
Name: Dacite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene
Analytical Data
Not available
Materials
Ore: Malachite
Ore: Galena
Ore: Sphalerite
Ore: Chrysocolla
Gangue: Pyrite
Gangue: Limonite
Gangue: Quartz
Comments
Comment (Commodity): SMALL LEVEL OF RADIOACTIVITY
Comment (Production): SMALL AMOUNT HAS BEEN PRODUCED.
Comment (Deposit): SMALL ORE BODY 2 FT. WIDE BY 10 FT. LONG WAS MINED FROM SURFACE TO 6 FT. DEPTH. IN MAIN ADIT VEIN IS 1-6.5 FT. WIDE AND STOPED ON BOTH SIDES OF DIKE FOR 40 FT.
Comment (Workings): PITS, ADIT, WORKINGS IN GOOD CONDITION 1960
References
Reference (Production): MBMG BULL 16, P. 28.
Reference (Deposit): MBMG BULL 16, P. 26, 28
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.
