Thorite No. 1 Prospect

The Thorite No. 1 Prospect is a thorium mine located in Lemhi county, Idaho at an elevation of 9,101 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: Thorite No. 1 Prospect  

State:  Idaho

County:  Lemhi

Elevation: 9,101 Feet (2,774 Meters)

Commodity: Thorium

Lat, Long: 44.9075, -113.47330

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 Thorite No. 1 Prospect

Thorite No. 1 Prospect MRDS details

Site Name

Primary: Thorite No. 1 Prospect
Secondary: Saddlerock


Commodity

Primary: Thorium
Tertiary: REE


Location

State: Idaho
County: Lemhi
District: Lemhi Pass Area


Land Status

Land ownership: BLM Administrative Area
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

Not available


Ownership

Not available


Production

Not available


Deposit

Record Type: Site
Operation Category: Occurrence
Deposit Type: Vein
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: Beaverhead Mountains


Mineral Deposit Model

Not available


Orebody

Not available


Structure

Not available


Alterations

Not available


Rocks

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

Name: Quartzite
Role: Host
Age Type: Host Rock Unit
Age Young: Neoproterozoic


Analytical Data

Analytical Data: ANOTHER SAMPLE ASSAYED 0.111% RAE OXIDES, 0.117% THO2, AND 0.95% COMBINED RAE AND TH OXIDES
Analytical Data: 1 CHIP SAMPLE HAD 0.14% THO2


Materials

Ore: Thorite
Gangue: Goethite
Gangue: Quartz
Gangue: Muscovite
Gangue: Apatite
Gangue: Pyrite
Gangue: Magnetite


Comments

Comment (Workings): 3 Prospect Pits


References

Reference (Deposit): Staatz, M. H., 1972, Geology And Description Of Thorium-Bearing Veins, Lemhi Pass Quadrangle, Idaho And Montana: USGS Bulletin 1351, 94 P., Table 2, P. 74, Plate 1.

Reference (Deposit): Staatz, M. H., And Others, 1972, Occurrence And Distribution Of Rare Earths In The Lemhi Pass Thorium Veins, Idaho And Montana: Econ. Geol., V. 67, No. 1, P. 72-82.

Reference (Deposit): Staatz, M.H., 1979, Geology And Mineral Resources Of The Lemhi Pass Thorium District, Idaho And Montana: U.S. Geological Survey Prof. Paper 1049-A, No. 93, Table 2, P. 437


Idaho Gold

Where to Find Gold in Idaho

"Where to Find Gold in Idaho" looks at the density of modern placer mining claims along with historical gold mining locations and mining district descriptions to determine areas of high gold discovery potential in Idaho. Read more: Where to Find Gold in Idaho.