N. W. Prospecting & Development Prospect

The N. W. Prospecting & Development Prospect is a mine located in Boundary county, Idaho at an elevation of 3,232 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: N. W. Prospecting & Development Prospect
Secondary: Atomic Fuels Corporation

Commodity

Tertiary: REE
Tertiary: Thorium

Location

State: Idaho
County: Boundary
District: Moyie - Yaak District

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

Owner Name: N. W. Prospecting And Developing Co. - Lessee

Production

Not available

Deposit

Record Type: Site
Operation Category: Occurrence
Deposit Type: Vein
Operation Type: Unknown
Discovery Year: 1955
Discovery Method: Ore-Mineral Not In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Physiographic Detail: Purcell Range

Mineral Deposit Model

Not available

Orebody

Form: LENS, STRINGERS

Structure

Type: L
Description: Nw - Trending Faults, Brecciation

Alterations

Alteration Type: L
Alteration Text: Chlorite

Rocks

Name: Diorite
Role: Associated
Age Type: Host Rock Unit
Age Young: Neoproterozoic

Name: Diorite
Role: Associated
Age Type: Associated Rock
Age Young: Neoproterozoic

Name: Diorite
Role: Associated
Age Type: Host Rock
Age Young: Neoproterozoic

Analytical Data

Analytical Data: RADIOACTIVITY READINGS 8 - 10 MR/HR AT THE 2 EXPOSURES.

Materials

Ore: Thorite
Ore: Allanite
Ore: Cenosite
Gangue: Quartz
Gangue: Calcite
Gangue: Apatite
Gangue: Magnetite

Comments

Comment (Location): W. SIDE OF HALL MOUNTAIN AT END OF JEEP ROAD CONNECTED TO STATE HIGHWAY 1

Comment (Development): NORTHWEST PROSPECTING AND DEVELOPMENT CO. CHANGED ITS NAME TO THE ATOMIC FUELS CORPORATION

Comment (Deposit): VEIN IN PIT STRIKES N 20 TO 30 DEG E, DIPS 75 TO 85 DEG NW; VEIN DESCRIBED ABOVE IN LENGTH AND WIDTH TRENDS N 16 DEG E, DIPS 62 DEG SE

Comment (Workings): TRENCH AND SHALLOW PIT; 2 DIAMOND DRILL HOLES ( 112, 57 FT DEEP ) CUT ONLY DIORITE

Comment (Geology): MINERALIZATION WAS POST-BATHOLITH,

References

Reference (Deposit): ANDERSON, A. L., AND SAVAGE, C. N., 1964, MINERAL RESOURCES - THORIUM AND THE RARE EARTHS, IN MINERAL AND WATER RESOURCES OF IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY SPEC. REPT., NO. 1, P. 211 - 217.

Reference (Deposit): LE MOINE, DENIS, 1960, GEOLOGY OF THORITE DEPOSITS OF THE HALL MOUNTAIN AREA, BOUNDARY COUNTY, IN STUDY OF TWO THORITE DEPOSITS: IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET, NO. 122, P. 15 - 22.

Reference (Deposit): LE MOINE, DENIS, 1959, THORITE DEPOSITS AND GENERAL GEOLOGY OF THE HALL MOUNTAIN AREA, BOUNDARY COUNTY, IDAHO: UNPUBLISHED THESIS, UNIV. IDAHO, 68 P.

Reference (Deposit): ADAMS, J. W., AND OTHERS, 1964, AM. MINERALOGIST, V.49, NO. 11-12, P. 1736-1741.

Reference (Deposit): 1960 GEOLMAP IDAHO BUREAU OF MINES & GEOL. PAMPHLET NO. 122

Reference (Deposit): 1964 COMPILE IDAHO BUREAU OF MINES & GEOL. SPEC. RPT. NO. 1

Idaho Gold

"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.