Comstock Group

The Comstock Group is a silver and lead 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

Name: Comstock Group  

State:  Montana

County:  Jefferson

Elevation:

Primary Mineral: Silver, Lead

Lat, Long: 46.27111, -112.20833

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 Comstock Group

Comstock Group MRDS details

Site Name

Primary: Comstock Group


Commodity

Primary: Silver
Primary: Lead
Secondary: Copper
Secondary: Zinc
Tertiary: Uranium


Location

State: Montana
County: Jefferson
District: Basin (Cataract, Comet) District


Land Status

Not available


Holdings

Not available


Workings

Type: Surface/Underground


Ownership

Owner Name: Howard Johnson, Butte. (Two Claims Pat) P.K. Williams, Helena, And W.L. Sand Quist And George Mayer,


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
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

Type: L
Description: Ne Striking Dacite Dike Cuts Granite And Vein


Alterations

Not available


Rocks

Name: Dacite
Role: Associated
Age Type: Host Rock
Age Young: Late Cretaceous

Name: Dacite
Role: Associated
Age Type: Associated Rock
Age Young: Pliocene


Analytical Data

Not available


Materials

Ore: Malachite
Ore: Galena
Ore: Sphalerite
Ore: Chrysocolla
Gangue: Pyrite
Gangue: Limonite
Gangue: Quartz


Comments

Comment (Commodity): SMALL LEVEL OF RADIOACTIVITY

Comment (Production): SMALL AMOUNT HAS BEEN PRODUCED.

Comment (Deposit): SMALL ORE BODY 2 FT. WIDE BY 10 FT. LONG WAS MINED FROM SURFACE TO 6 FT. DEPTH. IN MAIN ADIT VEIN IS 1-6.5 FT. WIDE AND STOPED ON BOTH SIDES OF DIKE FOR 40 FT.

Comment (Workings): PITS, ADIT, WORKINGS IN GOOD CONDITION 1960


References

Reference (Production): MBMG BULL 16, P. 28.

Reference (Deposit): MBMG BULL 16, P. 26, 28


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.