The Earthquake Mine is a silver and lead 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.
Earthquake Mine MRDS details
Site Name
Primary: Earthquake Mine
Commodity
Primary: Silver
Primary: Lead
Secondary: Copper
Secondary: Zinc
Tertiary: Fluorine-Fluorite
Location
State: Montana
County: Lewis and Clark
District: Marysville District
Land Status
Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
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
Mineral Deposit Model
Not available
Orebody
Not available
Structure
Type: R
Description: Boulder Batholith
Type: L
Description: Marysville Stock
Alterations
Alteration Type: L
Alteration Text: Oxidized
Rocks
Name: Shale
Role: Host
Age Type: Host Rock
Age Young: Neoproterozoic
Name: Shale
Role: Host
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Analytical Data
Analytical Data: ORE OF $10-50/TON IN AU, OR PB, ZN AND AG (1900)
Materials
Ore: Malachite
Ore: Chalcopyrite
Ore: Calamine
Ore: Chrysocolla
Ore: Galena
Gangue: Quartz
Gangue: Fluorite
Comments
Comment (Location): S SIDE OF TOWSLEY GULCH. ; INFO FROM LAND.ST :(1959)
Comment (Production): ORE RICH IN GALENA WAS BEING PRODUCED IN THE COURSE OF DEVELOPMENT WORK.
Comment (Deposit): PART OF FRACTURE KNOWN AS THE TOWSLEY VEIN.
Comment (Workings): ADIT, SHAFT, OPEN CUTS
References
Reference (Deposit): USGS BULL 842, P. 63, 75-6, PL. 5
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.
