Nellie-Mascot Group

The Nellie-Mascot Group is a gold, silver, and lead mine located in Jefferson county, Montana at an elevation of 7,201 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: Nellie-Mascot Group  

State:  Montana

County:  Jefferson

Elevation: 7,201 Feet (2,195 Meters)

Commodity: Gold, Silver, Lead

Lat, Long: 45.95556, -112.38472

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 Nellie-Mascot Group

Nellie-Mascot Group MRDS details

Site Name

Primary: Nellie-Mascot Group


Commodity

Primary: Gold
Primary: Silver
Primary: Lead


Location

State: Montana
County: Jefferson
District: Homestake District


Land Status

Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.


Holdings

Not available


Workings

Type: Underground


Ownership

Owner Name: Brown, Bill, Homestake

Owner Name: Templeton, J.L.
Home Office: Butte, Mt.


Production

Not available


Deposit

Record Type: Site
Operation Category: Past Producer
Deposit Type: Vein
Operation Type: Unknown
Year First Production: 1911
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
Age Young: Late Cretaceous

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: Late Cretaceous


Analytical Data

Not available


Materials

Ore: Silver
Gangue: Quartz


Comments

Comment (Commodity): QUARTZ VEIN HIGH IN SILVER

Comment (Location): SW/4 OF NW/4 OF SECT. 5

Comment (Production): 8 PRODUCTION YEARS. MAIN PRODUCTION IN 1911-1916. OWNER REPORTS $15,000 PRODUCTION AS OF 1935.

Comment (Development): GASOLINE-DRIVEN COMPRESSOR.

Comment (Workings): 2 50 FT SHAFTS AND 6 ADITS; 150, 100, 1000, 700, 300, AND 700 FT. 2000 FT OF DRIFTS, 400 FT OF CROSSCUTS AND 300 FT OF RAISES

Comment (Geology): QUARTZ VEIN CUTS AN APLITE FACIES OF THE BOULDER BATHOLITH.


References

Reference (Deposit): 1960 RECON MONT. BUREAU OF MINES AND GEOL. BULL. 1

Reference (Production): MBMG BULLETIN 16.

Reference (Deposit): GILBERT, F.C., 1935, DIRECTORY OF MINING PROPERTIES: MONTANA BUREAU OF MINES AND GEOLOGY MEMOIR 15, P. 30.

Reference (Deposit): MBMG BULL 16.


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.