Cruse Mine

The Cruse Mine is a gold and silver 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

Name: Cruse Mine  

State:  Montana

County:  Lewis and Clark

Elevation:

Primary Mineral: Gold, Silver

Lat, Long: 46.74889, -112.32056

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 Cruse Mine

Cruse Mine MRDS details

Site Name

Primary: Cruse Mine
Secondary: Bald Mountain Mine


Commodity

Primary: Gold
Primary: Silver
Secondary: Copper
Secondary: Zinc
Secondary: Lead


Location

State: Montana
County: Lewis and Clark
District: Marysville District


Land Status

Not available


Holdings

Not available


Workings

Type: Underground


Ownership

Not available


Production

Year: 1948
Time Period: 1909-1948
Mined: 140000.000 mt
Material type: ore


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Polymetallic veins, Au-Ag
Operation Type: Unknown
Years of Production:
Organization:
Significant: Y
Deposit Size: S


Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains


Mineral Deposit Model

Model Name: Polymetallic veins


Orebody

Not available


Structure

Type: R
Description: Boulder Batholith

Type: L
Description: Marysville Stock


Alterations

Alteration Type: L
Alteration Text: Oxidation And Leaching


Rocks

Name: Diorite
Role: Associated
Description: QUARTZ DIORITE
Age Type: Associated Rock
Age Young: Late Cretaceous

Name: Diorite
Role: Associated
Description: QUARTZ DIORITE
Age Type: Host Rock
Age Young: Late Cretaceous

Name: Diorite
Role: Associated
Description: QUARTZ DIORITE
Age Type: Host Rock Unit
Age Young: Neoproterozoic

Name: Diorite
Role: Associated
Description: QUARTZ DIORITE
Age Type: Associated Rock Unit
Age Young: Late Cretaceous


Analytical Data

Not available


Materials

Ore: Gold
Gangue: Quartz


Comments

Comment (Location): 0.9 KM E OF MT BELMONT.

Comment (Development): 70% OF THE AU AND AG RECOVERED AT THE MILL, THE TAILINGS WENT TO A CYANIDE PLANT.

Comment (Workings): 20 STAMP MILL ON PROPERTY IN 1911 . 3 TUNNELS, TUNNEL NO 1 IS THE WORKING ADIT AND IT IS IN THE QUARTZ DIORITE, THE 2ND AND 3RD TUNNELS ARE IN THE HORNSTONE.

Comment (Production): RICH PRODUCER (1911)

Comment (Deposit): VEIN FORKS AND NARROWS UPON ENTERING HORNSTONE. ORE VALUE DECREASES WITH DEPTH

Comment (Deposit): Merged data from Deposit ID's: 10245403 (Cruse Mine) 10221489 (Belmont Mine) 10124475 (Bald Mountain Mine)


References

Reference (Deposit): USGS BULL 527, P. 72.

Reference (Deposit): USGS BULL 842, P. 63, PL. 5.

Reference (Deposit): USGS PP 57, P. 164, PL. 1

Reference (Production): USGS BULL 842, P. 63.