Twilight Mine

The Twilight Mine is a gold mine located in Deer Lodge 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: Twilight Mine  

State:  Montana

County:  Deer Lodge

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

Commodity: Gold

Lat, Long: 46.2175, -113.24528

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 Twilight Mine

Twilight Mine MRDS details

Site Name

Primary: Twilight Mine


Commodity

Primary: Gold
Secondary: Iron


Location

State: Montana
County: Deer Lodge
District: Georgetown (Southern Cross, Cable) 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: Paul A. Fusz And John R. Lucas
Home Office: Philipsburg, Mt.


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
Physiographic Detail: Flint Creek Range


Mineral Deposit Model

Not available


Orebody

Form: IRREGULAR


Structure

Type: R
Description: Philipsburg Batholith

Type: L
Description: Cable Stock


Alterations

Alteration Type: L
Alteration Text: Pyritization, Oxidation


Rocks

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Late Cretaceous

Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Late Cambrian

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Late Cambrian


Analytical Data

Not available


Materials

Ore: Gold
Ore: Hematite
Ore: Limonite
Ore: Iron
Gangue: Quartz
Gangue: Pyrite


Comments

Comment (Geology): NODULAR MASSES OF LIMONITE WITH PYRITE AT CENTER

Comment (Location): WEST SLOPE OF CABLE MT, 3500 FT N 35 E OF SOUTHERN CROSS MINE. ; INFO FROM LAND.ST :(1971)

Comment (Production): SEVERAL $1000 IN AU FROM A THOUSAND TONS OF ORE.

Comment (Deposit): DIP FROM 60-85S, CALCITE VEINLETS CUT LODE AT LARGE ANGLES, ORIGINAL ORE WAS A SILICEOUS PYRITIC REPLACEMENT OF COUNTRY ROCK.

Comment (Workings): TUNNEL, WINZE, DRIFTS, EAST END A SHAFT CONNECTS WITH THE SURFACE CROSSCUT TUNNEL INTERSECTS THE LODE 125 FT FROM PORTAL AND THEN FOLLOWS THE LODE E FOR 400 FT. 100 FT WINZE IS SUNK ON THE VEIN 380 FT FROM THE PORTAL, DRIFTS ARE RUN FROM IT MIDWAY OF ITS DEPTH AND AT THE BOTTOM.


References

Reference (Deposit): MONT. BUREAU OF MINES & GEOL. INF. CIRC. 13, 1956, PL. 4

Reference (Deposit): USGS PP 78, P. 235.

Reference (Production): CALKINS, AND EMMON 1913 USGS PROF. PAPER 78


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.