The Legal Tender Mine is a silver mine located in Beaverhead county, Montana at an elevation of 6,601 feet.
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
Elevation: 6,601 Feet (2,012 Meters)
Commodity: Silver
Lat, Long: 45.295, -112.89111
Map: View on Google Maps
Legal Tender Mine MRDS details
Site Name
Primary: Legal Tender Mine
Commodity
Primary: Silver
Secondary: Lead
Location
State: Montana
County: Beaverhead
District: Argenta District
Land Status
Not available
Holdings
Not available
Workings
Type: Underground
Ownership
Owner Name: Claude H. Brown, Dillon, Mt.
Production
Not available
Deposit
Record Type: Site
Operation Category: Producer
Operation Type: Unknown
Discovery Year: 1865
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Pioneer Mountains
Mineral Deposit Model
Not available
Orebody
Form: TABULAR
Structure
Not available
Alterations
Not available
Rocks
Name: Dolomite
Role: Host
Age Type: Host Rock Unit
Age Young: Late Devonian
Name: Dolomite
Role: Host
Age Type: Host Rock
Age Young: Late Devonian
Analytical Data
Analytical Data: SHENON (1931) REPORTED ORE ASSAYED 300 OZ AG PER TON
Materials
Ore: Galena
Comments
Comment (Geology): RHYOLITE OF LATER AGE THAN THE GRANODIORITE COVERS A WIDE AREA EXTENDING FROM OPHIR SOUTHWARD ACROSS THE VALLEY.
Comment (Deposit): MAJORITY OF PRODUCTION WAS FROM PLACER DEPOSIT. THESE ARE NOT, HOWEVER, IN THE GLACIAL MORAINES. THEY ARE IN GRAVELS OF PRESENT STREAM TERRACES AND BENCHES.
Comment (Workings): LAWSON (1973) LISTS PROPERTY AS BEING UNDER DEVELOPMENT
Comment (Geology): DEPOSIT FOLLOWS A BEDDING PLANE OF THE LOWER MEMBER OF JEFFERSON FM.
Comment (Deposit): MINE WAS ONE OF FIRST SILVER-LEAD MINES DISCOVERED IN MONTANA - SUPPLIED ORE FOR FIRST SMELTER BUILT IN STATE
Comment (Production): ALTHOUGH NO AVAILABLE RECORDED HISTORY OF PRODUCTION SHENON (1931) ESTIMATED PRODUCTION $150,000.
Comment (Location): NEAR "GHOST TOWN" OF BLACKFOOT CITY
Comment (Production): WO3 WAS PRODUCED FROM THE BOULDER ORES: 222 TONS OF 0.5% WO3 AT $2440.
Comment (Development): MINES: ESMERALDA MCKAY, BUMBLE BEE, VICTORY, COON'S TUNGSTEN, FAIRVIEW, DENVER, OPSATA, BUTTERFLY, AJAX, POTRATZ, CYCLONE, LITTLE DASIY, PRISE, FLAGSTAFF, SNOWSHOE, JACK PINE, CARPENTER CREEK, SNOWSHOE CREEK AND OPHIR CREEK PLACERS. ; ECON.COM: MINES FILLED WITH WATER
Comment (Deposit): PLACER DEPOSITS WERE FOUND IN TERRACE DEPOSITS. THE LIMESTONES HAVE BEEN ALTERED IN VARIOUS DEGREES BY THE BOULDER BATHOLITH. MANY PLACES THE GARNET TACTITES WERE HOSTS FOR THE LODE DEPOSITS. SOME LODES WERE DEPOSITED IN VEINS THAT WERE ON ORE NEAR THE CONTACT OF THE LIMESTONE AND THE QUARTZ MONZONITE.
Comment (Workings): PLACER MINES 8 MILES LONG, DEPOSIT DESCRIPTION OF THE FAIRVIEW MINE - SPECULATED THE MORE ORE CAN BE OBTAINED.
References
Reference (Deposit): MBMG BULL 85.
Reference (Deposit): MBMG BULL 92.
Reference (Deposit): 1931 COMPILE M.B.M.G., SHENON, P.J., BULL. 6
Reference (Deposit): 1972 COMPILE M.B.M.G., GEACH, R.D., BULL. 85, SIZE & DIRECTIONAL DATA
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.
