Butte and Philadelphia Prospect

The Butte and Philadelphia Prospect is a gold, 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: Butte and Philadelphia Prospect  

State:  Montana

County:  Jefferson

Elevation:

Commodity: Gold, Silver, Lead

Lat, Long: 46.39167, -112.27500

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 Butte and Philadelphia Prospect

Butte and Philadelphia Prospect MRDS details

Site Name

Primary: Butte and Philadelphia Prospect
Secondary: Lady Leith-Cady Leith Mines


Commodity

Primary: Gold
Primary: Silver
Primary: Lead
Secondary: Zinc
Tertiary: Barium-Barite


Location

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

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: Host Rock
Age Young: Late Cretaceous

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


Analytical Data

Not available


Materials

Ore: Sphalerite
Ore: Galena
Ore: Gold
Gangue: Quartz
Gangue: Tourmaline
Gangue: Barite
Gangue: Pyrite
Gangue: Siderite


Comments

Comment (Location): LIES ON NW FLANK OF S PEAK OF THE THREE BROTHERS. ; INFO FROM LAND.ST :(1954)

Comment (Production): FEW HUNDRED TONS OF ORE.

Comment (Deposit): BETWEEN PYRITE AND THE HEAVY ZONE OF GOUGE THERE ARE SLABS OF GALENA 1 IN THICK AND 1-2 FT IN DIAMETER SHOWING BANDED STRUCTURE. 3 PARALLEL VEINS. 7-10 FT CRUSHED ZONE.

Comment (Workings): UPPER ADIT 500 FT LONG AND A 50-100 FT VERTICAL SHAFT, LOWER WORKING INCLUDE 350-400 FT ADIT, APPENDED DRIFT, SHALLOW ADITS AND PITS.


References

Reference (Deposit): MBMG BULL 16, P. 26, 33

Reference (Deposit): USGS BULL 527, P. 124

Reference (Deposit): USGS BULL 842, P. 294.

Reference (Deposit): USGS BULL 1151, P. 111-12.

Reference (Production): USGS BULL 1151, P. 111.


Principal Gold Districts of Montana

Principal Gold Districts of Montana

In Montana, 54 mining districts have each have produced more than 10,000 ounces of gold. The largest producers are Butte, Helena, Marysville, and Virginia City, each having produced more than one million ounces. Twenty seven other districts are each credited with between 100,000 and one million ounces of gold production. Read more: Principal Gold Districts of Montana.