Bulwer Mine

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

Name: Bulwer Mine  

State:  Montana

County:  Jefferson

Elevation: 6,001 Feet (1,829 Meters)

Primary Mineral: 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.


Satelite image of the Bulwer Mine

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


Colorized Mining Photos

Drumlummon Mine at Marysville, Montana late 1880s

Western Mining History's collection of colorized mining photos includes incredible scenes from Montana: Best Historical Photos: Colorized Mining Scenes.