Lookout No. 3 Claim

The Lookout No. 3 Claim is a thorium mine located in Beaverhead county, Montana at an elevation of 8,599 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

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.

Site Name

Primary: Lookout No. 3 Claim

Commodity

Primary: Thorium
Secondary: Uranium

Location

State: Montana
County: Beaverhead
District: Deer Creek District

Land Status

Not available

Holdings

Not available

Workings

Not available

Ownership

Owner Name: R. H. Underwood ( 1953 )

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Years of Production:
Organization:
Significant: N

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains

Mineral Deposit Model

Not available

Orebody

Form: LENTICULAR

Structure

Type: R
Description: Foliation Of Diorite Strieks N 60 E And Dips 80 Ne

Alterations

Not available

Rocks

Name: Gneiss
Role: Host
Age Type: Host Rock
Age Young: Neoproterozoic

Analytical Data

Analytical Data: GRAB SAMPLE INDICATES .24 % THO2 (THORIA)

Materials

Ore: Thorite
Gangue: Pyrite
Gangue: Calcite
Gangue: Chalcopyrite

Comments

Comment (Geology): GEOL.DESC: SMALL LENTICULAR CALCITE VEIN WITH TINY CRYSTALS OF PYRITE AND CHALCOPYRITE, AND .006% U, .24% TH, 2.71% RARE EARTHS.

Comment (Workings): ONE SHALLOW PIT

Comment (Deposit): ONE SMALL PIT ; INFO.SRC : 1 PUB LIT

Comment (Location): LOCATED AT WEST END OF LIMEKILN CANYON

References

Reference (Deposit): CONSV. DIV. COMP. DATE, 02-07-1963

Reference (Deposit): 1953 GEOLMAP TRITES A. F., TOOKER E. W., BULL 988-H

Reference (Deposit): 1972 GEOLMAP GEACH R. D., MINES AND MINERALS, MONT.

Reference (Deposit): SAHINEN, UM, 1955, MONT. B.M. AND GEOL. INF. CIRC. 6, P. 8.

Reference (Deposit): TRITES AND TOOKER, 1953, USGS BULL. 988-H, P. 188.

Reference (Deposit): GEACH, R. D., 1972 , MINES AND MINERAL DEPOSITS, BEAUERHEAD CO., MONT., MONT. BUR. OF MINES AND GEOLOGY, BULL 85 .

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.