The Big Indian Mine is a gold 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.
Big Indian Mine MRDS details
Site Name
Primary: Big Indian Mine
Commodity
Primary: Gold
Location
State: Montana
County: Jefferson
District: Helena District
Land Status
Not available
Holdings
Not available
Workings
Type: Surface/Underground
Ownership
Not available
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Discovery Year: 1875
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: Vertical Joint System; Aplite And Diorite Porphyry Dikes
Alterations
Alteration Type: L
Alteration Text: Tourmalinization In Fractures
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
Analytical Data: $5/TON AU.
Materials
Ore: Gold
Gangue: Tourmaline
Gangue: Pyrite
Gangue: Quartz
Comments
Comment (Location): NEAR THE HEAD OF HOLMES GULCH.
Comment (Production): ESTIMATED $110,000 IN AU BETWEEN 1875-1902. DURING 1903 & 1904 IT WAS THE LARGEST PRODUCER OF AU. CEASED PRODUCTION IN 1905.
Comment (Deposit): THE ORE BODY IS A MINERALIZED STOCKWORK CONSISTING OF A MULTITUDE OF NET-LIKE VEINLETS OF IRON-STAINED QUARTZ, TOURMALINE, AND PYRITE.
Comment (Workings): SMALLER OPEN CUT (PIT) 100 FT. BY 75 FT.; 10 STAMP MILL (1902), 60 STAMP MILL (1902-1905) ELECTRIC POWERED ORE WAS DRAWN FROM THE CUTS THROUGH A "GLORY HOLE" AND TRAMMED TO THE MILL THROUGH AN ADIT. EXTENT OF UNDERGROUND WORKINGS IS UNKNOWN.
Comment (Geology): PARDEE, USGS BULL 842, SAYS THERE ARE NO QUART VEINLETS.
References
Reference (Deposit): USGS BULL 57, P. 51, 100.
Reference (Production): MBMG BULL 16, P. 105
Reference (Deposit): MBMG BULL 16, P. 74-5, 105.
Reference (Deposit): USGS BULL 842, P. 210
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.
