The Bulwer Mine is a copper mine located in Jefferson county, Montana at an elevation of 6,001 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: 6,001 Feet (1,829 Meters)
Commodity: Copper
Lat, Long: 46.25833, -111.94167
Map: View on Google Maps
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.
Bulwer Mine MRDS details
Site Name
Primary: Bulwer Mine
Secondary: Elkhorn-Bulwer
Secondary: Boulaway
Commodity
Primary: Copper
Secondary: Lead
Secondary: Zinc
Secondary: Silver
Tertiary: Gold
Location
State: Montana
County: Jefferson
District: Elkhorn Mining District
Land Status
Not available
Holdings
Not available
Workings
Type: Unknown
Ownership
Owner Name: Boe, Norman
Owner Name: Curtiss, Kenneth
Production
Not available
Deposit
Record Type: Site
Operation Category: Past Producer
Deposit Type: Contact Metamorphic
Operation Type: Unknown
Year First Production: 1914
Discovery Method: Unknown
Years of Production:
Organization:
Significant: N
Deposit Size: S
Physiography
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Elkhorn Mountains
Mineral Deposit Model
Not available
Orebody
Form: IRREGULAR
Structure
Type: R
Description: North Plunging Anticline
Alterations
Alteration Type: L
Alteration Text: Brecciation, Thermal Metamorphism-Development Of Calc-Silicate Minerals-Clay And Sericite
Rocks
Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous
Name: Diorite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous
Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Middle Cambrian
Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Cambrian
Analytical Data
Analytical Data: GRAB SAMPLES ASSAYED 0.01 OZ AU AND 0.6 OZ AG/TON, 0.4% CU, 0.35% PB, 0.5% ZN
Materials
Ore: Malachite
Ore: Chrysocolla
Gangue: Pyrite
Comments
Comment (Workings): MINE DEVELOPED BY 2 ADITS, 410 FT. AND 150 FT. LONG, PLUS TWO SHAFTS, 180 FT. DEEP AND 155 FT. DEEP. 348 FT. OF DRIFT AND CROSSCUT FROM BOTTOM OF 155 FT. SHAFT AND 40 FT. DRIFT FROM BOTTOM OF 180 FT. SHAFT
Comment (Deposit): MUCH SURFACE COPPER STAIN ALONG CONTACT BUT EXPLORATION HAS FAILED TO FIND ORE AT DEPTH
References
Reference (Deposit): ROBY, R.N., ACKERMAN, W.C., FULKERSON, F.B., AND CROWLEY, F.A., 1960, MINES AND MINERAL DEPOSITS (EXCEPT FUELS) JEFFERSON COUNTY, MONTANA: MONTANA BUREAU OF MINES AND GEOL. BULL. 16, P. 58
Reference (Deposit): KLEPPER, M.R., WEEKS, R.A., AND RUPPEL, E.T., 1957, GEOLOGY OF THE SOUTHERN ELKHORN MOUNTAINS, JEFFERSON AND BROADWATER COUNTIES, MONTANA: U.S. GEOL. PROF. PAPER 292, P. 70
Reference (Production): USGS PROF. PAPER 292, P. 70
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.
