The Helena 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.
Helena Mine MRDS details
Site Name
Primary: Helena Mine
Commodity
Primary: Silver
Primary: Lead
Secondary: Gold
Secondary: Zinc
Location
State: Montana
County: Lewis and Clark
District: Scratchgravel Hills District
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Owner Name: Paul Smith
Home Office: 26 W. Sixth Ave., Helena, Mt.
Owner Name: E. J. Stevens
Home Office: 1459 Cannon St., Helena, Mt.
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Contact Metasomatic
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: Scratchgravel Quartz Monzonite Stock
Alterations
Not available
Rocks
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic
Analytical Data
Analytical Data: UNOXIDIZED ORE: 25-35% MORE, AU AND AU STAYED THE SAME, 2-3% ZN.
Analytical Data: 0.29 OZ/TON AU, 14.34 OZ/TON AG, 13-14% PB
Materials
Ore: Galena
Ore: Gold
Comments
Comment (Location): 1.4 KM E OF STEMWINDER HILL.
Comment (Workings): SHAFT, DRIFTS
Comment (Geology): SAME VEIN AS THROUGH ROCK ROSE AND LOOBY MINE. HELENA IS IN THE MIDDLE.
References
Reference (Deposit): USGS BULL 842, P. 57-58.
Reference (Deposit): MBMG BULL 14, P. 22.
Reference (Production): USGS BULL 842, P. 57.
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.
