Cardinal Prospect

The Cardinal Prospect is a phosphorus-phosphates and thorium mine located in Lemhi county, Idaho at an elevation of 5,000 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: Cardinal Prospect  

State:  Idaho

County:  Lemhi

Elevation: 5,000 Feet (1,524 Meters)

Commodity: Phosphorus-Phosphates, Thorium

Lat, Long: 45.4208, -114.20080

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 Cardinal Prospect

Cardinal Prospect MRDS details

Site Name

Primary: Cardinal Prospect


Commodity

Primary: Phosphorus-Phosphates
Primary: Thorium
Tertiary: REE


Location

State: Idaho
County: Lemhi
District: Indian Creek 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.
Administrative Organization: Salmon National Forest


Holdings

Not available


Workings

Not available


Ownership

Owner Name: Cardinal Mining Co.


Production

Not available


Deposit

Record Type: Site
Operation Category: Occurrence
Operation Type: Unknown
Discovery Method: Ore-Mineral 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: Bitterroot Mountains


Mineral Deposit Model

Not available


Orebody

Form: SCATTERED OR GROUPED CRYSTALS, MASSIVE CLUSTERS


Structure

Not available


Alterations

Not available


Rocks

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

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


Analytical Data

Analytical Data: 2 SAMPLES ACROSS BEST ZONES ASSAYED 0.0 AND 3.84% RAE OXIDES PLUS THORIA, 1.42 AND 1.71% P.


Materials

Ore: Monazite
Ore: Allanite
Gangue: Quartz
Gangue: Magnetite
Gangue: Limonite
Gangue: Actinolite
Gangue: Barite
Gangue: Calcite


Comments

Comment (Location): 2.5 MI UPSTREAM FROM SALMON RIVER; ON RIDGE SEPARATING PAPOOSE CREEK FROM SQUAW CREEK

Comment (Commodity): GEIGER COUNTER READINGS WERE 2 1/2 TO 3 TIMES BACKGROUND.

Comment (Geology): YOUNGER QUARTZ VEIN HAS INCORPORATED SOME OF DEPOSIT.


References

Reference (Deposit): STURM, F. H., 1954, GENERAL GEOLOGY OF SOME REPLACEMENT MONAZITE DEPOSITS IN LEMHI COUNTY, IDAHO: MOSCOW, IDAHO, UNIV. OF IDAHO, M. S. THESIS, 64 P.

Reference (Deposit): 1958 RECON IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 115

Reference (Deposit): 1954 RECON IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 99

Reference (Deposit): ANDERSON, A. L., 1958, URANIUM, THORIUM, COLUMBIUM, AND RARE EARTH DEPOSITS IN THE SALMON REGION, LEMHI COUNTY, IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 115, 81 P.

Reference (Deposit): ABBOTT, A. T., 1954, MONAZITE DEPOSITS IN CALCAREOUS ROCKS, NORTHERN LEMHI COUNTY, IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY PAMPHLET 99, 24 P.


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