Blue Cloud

The Blue Cloud is a molybdenum and tungsten 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: Blue Cloud  

State:  Montana

County:  Lewis and Clark

Elevation:

Primary Mineral: Molybdenum, Tungsten

Lat, Long: 46.59861, -112.16944

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 Blue Cloud

Blue Cloud MRDS details

Site Name

Primary: Blue Cloud


Commodity

Primary: Molybdenum
Primary: Tungsten


Location

State: Montana
County: Lewis and Clark
District: Blue Cloud District


Land Status

Not available


Holdings

Not available


Workings

Not available


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
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


Alterations

Not available


Rocks

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock Unit
Age Young: Late Cretaceous

Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic

Name: Quartz Monzonite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Name: Quartz Monzonite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic


Analytical Data

Analytical Data: 0.01% WO3, 0.02% MO


Materials

Ore: Scheelite
Gangue: Quartz
Gangue: Calcite


Comments

Comment (Location): ON BLUE CREEK RD NEAR OLD DOMINION MINE.

Comment (Deposit): SCHEELITE IS ASSOCIATED WITH TACTITE ALONG A QUARTZ MONZONITE-LIMESTONE CONTACT TRENDING N 10 W. SCHEELITE WAS NOT OBSERVED IN LIMESTONE OR IN THE GRANITE.

Comment (Workings): 13 FT SHAFT SUNK IN 1880'S REOPENED IN 1950.


References

Reference (Deposit): USBM RI 6334, P. 5, 25, 26