The Lexington 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
Lexington Mine MRDS details
Site Name
Primary: Lexington Mine
Commodity
Primary: Silver
Primary: Lead
Secondary: Gold
Secondary: Copper
Location
State: Montana
County: Lewis and Clark
District: Scratchgravel Hills District
Land Status
Not available
Holdings
Not available
Workings
Not available
Ownership
Owner Name: Mary Ann Manger And Vincent Cope
Home Office: Box 130, Townsend, Mt. 59644
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: Fault That Strikes N50e, Dips 60 Nw Scratchgravel Quartz Monzonite Stock
Alterations
Not available
Rocks
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous
Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Analytical Data
Not available
Materials
Ore: Galena
Ore: Copper
Ore: Gold
Gangue: Quartz
Gangue: Garnet
Gangue: Hornblende
Comments
Comment (Location): W SIDE OF SCRATCHGRAVEL HILLS.
Comment (Deposit): 3 SUCCESSIVE DEPOSITS: A METAMORPHIC BODY; FOLLOWED BY A GOLD-QUARTZ VEIN; FOLLOWED BY SILVER-LEAD VEIN IN A FISSURE PARALLEL TO THE METAMORPHIC BODY.
Comment (Production): $250,000 IN AG, PB, AU ORE PRIOR TO 1880
Comment (Development): DEVELOPING IN 1973
Comment (Workings): EXTENSIVE UNDERGROUND WORKINGS 500 FT. OF CAVED STOPES SHOWN BY SMALL PITS TRENDING NE
References
Reference (Deposit): USGS BULL 842, P. 56-7.
Reference (Deposit): MBMG BULL 100, P. 13
Reference (Production): PARDEE AND SCHRADER, 1933, U.S.G.S. BULL. 842, P. 56-57
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.
