North Trail Canyon Mine

The North Trail Canyon Mine is a phosphorus-phosphates mine located in Caribou county, Idaho at an elevation of 7,300 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: North Trail Canyon Mine  

State:  Idaho

County:  Caribou

Elevation: 7,300 Feet (2,225 Meters)

Primary Mineral: Phosphorus-Phosphates

Lat, Long: 42.7078, -111.48860

Map: View on Google Maps

Satelite View

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Satelite image of the North Trail Canyon Mine

North Trail Canyon Mine MRDS details

Site Name

Primary: North Trail Canyon Mine
Secondary: North Trail Canyon Proposed Mine
Secondary: Conda
Secondary: J. R. Simplot Co.-Conda
Secondary: Trail Canyon


Primary: Phosphorus-Phosphates
Tertiary: Fluorine-Fluorite
Tertiary: REE
Tertiary: Uranium
Tertiary: Vanadium


State: Idaho
County: Caribou
District: Soda Springs Area

Land Status

Land ownership: Private
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.


Type: Patented
Type: Federal Lease


Type: Surface


Owner Name: U.S. Bureau Of Land Management
Percent: 23.00
Info Year: 1983

Owner Name: J. R. Simplot Co.
Percent: 77.00
Home Office: P. O. Box 912, Pocatello, Idaho
Info Year: 1983


Year: 1978
Description: Estimate Of Production At 25.5% P205 212000 T Of Phosphate Rock
Year: 1977
Description: Estimate Of Production At 25.5% P205 424000 T Of Phophate Rock
Year: 1976
Description: Estimate Of Production At 25.5% P205 212000 T Of Phosphate Rock


Record Type: Deposit
Operation Category: Past Producer
Operation Type: Surface
Mining Method: Open Pit
Milling Method: Washing
Year First Production: 1976
Discovery Year: 1906
Discovery Method: Ore-Mineral In Place
Years of Production:
Significant: Y
Deposit Size: S


General Physiographic Area: Intermontane Plateaus
Physiographic Province: Basin And Range Province
Physiographic Section: Great Basin

Mineral Deposit Model

Model Name: Phosphate, upwelling type





Type: R
Structure: Trail Creek Syncline

Type: R
Structure: Shields Canyon Fault


Not available


Name: Chert
Role: Host
Age Type: Host Rock
Age Young: Late Permian

Name: Shale
Role: Host
Description: Phosphatic Shale
Age Type: Host Rock
Age Young: Late Permian

Role: Host
Age Type: Host Rock Unit
Age Young: Late Permian

Analytical Data

Analytical Data: SOME POOR RANDOM SAMPLES RANGED 11.5 - 28.8 % P2O5
Analytical Data: 26 SAMPLES FROM SECTION 30 GAVE 36.7 % P2O5 MAX


Unknown: Collophane
Unknown: Dolomite
Unknown: Feldspar
Unknown: Limonite
Unknown: Muscovite
Unknown: Quartz
Unknown: Sericite
Unknown: Calcite


Comment (Production): Mined Out - Closed. The Present Access Road Is Adequate. Water And Electrical Power Are Available At The Site. The Deposit Has Previously Produced And Future Ore Production Would Be Processed At The Conda Mill. Located On U.S.Forest Service Lands.

Comment (Production): Stripping Ration 3.8 : 1 (Expressed As Cy Waste: Tons Ore)

Comment (Location): 2 Mi Se Of Conda Mine

Comment (Workings): 1 Pit Proposed, 350 Ft Deep, 3800 Ft Long, 300 - 500 Ft Wide


Reference (Reserve-Resource): Hale, Lyle A. - Editor. Anatomy Of The Western Phosphate Field. Fifteenth Annual Field Conference, Intermountain Assoc. Of Geologists, 1967, Two Volumes.

Reference (Reserve-Resource): Service, A. L. An Evaluation Of The Western Phosphate Industry And Is Resources. Bumine Ri6801, Part 3, Idaho, 1966, 201 Pp.

Reference (Reserve-Resource): U. S. Geological Survey, U. S. Bureau Of Land Management, And U. S. Forest Service. Final Environmental Impact Statement/Development Of Phosphate Resources In Southeastern Idaho, 1978, Four Volumes.

Reference (Deposit): Mc Kelvey, V. E., And Others, 1953 , Stratigraphic Sections Of The Phosphoria Formation In Idaho, 1947 - 1948 , Part 2 : USGS Circ. 301 , 58 P.

Reference (Deposit): Powell, J. D., 1974 , Evaluation Of Phosphate Resources In Southeastern Idaho: Idaho Bureau Of Mines And Geology Inf. Circ. 25 , 33 P.

Reference (Deposit): V.E. Mitchell, Et. Al; Mines And Prospects Map Series, 1981, Preston Quad, Location No. 89

Reference (Reserve-Resource): Garrand, L. J. Phosphate Study Of Southeastern Idaho. U. S. Forest Service Contract 50-820, 1975, 4 Volumes Plus Map Folio.

Reference (Reserve-Resource): Gosling, Burton B. Producing Phosphate Mines In Idaho. Bumine Mas Report, WFOC, 1980. 150 Pp. Plus Appendix.

Reference (Reserve-Resource): Gulbrandsen, R. A., K. R. Mclaughlin, F. S. Hunkala, And S. E. Clabaugh. Geology Of The Johnson Creek Quadrangle, Caribou County, Idaho. U. S. Geological Survey Bulletin 1042a, 1956, 23 Pp.

Reference (Deposit): USGS, 1975 , Development Of Phosphate Resources In Southeastern Idaho: Draft Environmental Impact Statement, V. 2 , Pt. 10.1 , P. 3 - 29

Reference (Deposit): Mansfield, G. R., 1927 , Geography, Geology, And Mineral Resources Of Part Of Southeastern Idaho: USGS Prof. Paper 152 , 453 P.

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