Henry Phosphate Mine

The Henry Phosphate Mine is a phosphorus-phosphates mine located in Caribou county, Idaho at an elevation of 6,749 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: Henry Phosphate Mine  

State:  Idaho

County:  Caribou

Elevation: 6,749 Feet (2,057 Meters)

Primary Mineral: Phosphorus-Phosphates

Lat, Long: 42.87621, -111.47322

Map: View on Google Maps

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Satelite image of the Henry Phosphate Mine

Henry Phosphate Mine MRDS details

Site Name

Primary: Henry Phosphate Mine
Secondary: North Henry
Secondary: Central Henry
Secondary: South Henry
Secondary: North Wooley Range
Secondary: Lanes Creek NW, Area A, 1-7
Secondary: Lower Valley, Area B, 2-6
Secondary: Henry NE, Area A, 2, 3, 4


Commodity

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


Location

State: Idaho
County: Caribou
District: Blackfoot River District


Land Status

Land ownership: State
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

Type: Fee Ownership
Type: State Lease
Type: Federal Lease


Workings

Type: Surface


Ownership

Owner Name: Dravo-Soda Springs
Company ID: 1000091
Home Office: SODA SPRINGS ID 83276
Info Year: 1984

Owner Name: Dravo Corp & N A Degerstrom, Inc.
Company ID: 1000091
Home Office: Washington
Info Year: 1984

Owner Name: Monsanto Chemical Intermediates Co.
Company ID: 1000091
Percent: 100.0
Home Office: SODA SPRINGS ID 83276
Info Year: 1984
Years: 1979 -


Production

Year: 1975
Description: Phosphate Rock 27.6 % P205 859000 Tonnes Of Ore Per Year
Year: 1974
Description: Phosphate Rock 27.8 % P205 1052000 Tonnes Of Ore Per Year
Year: 1980
Description: Phosphate Rock 27.1 % P205 590000 Tonnes Of Ore Per Year
Year: 1979
Description: Phosphate Rock 27.8 % P205 636000 Tonnes Of Ore Per Year
Year: 1978
Description: Phosphate Rock 27.3 % P205 679000 Tonnes Of Ore Per Year
Year: 1977
Description: Phosphate Rock 27.8 % P205 632000 Tonnes Of Ore Per Year
Year: 1976
Description: Phosphate Rock 27.4 % P205 913000 Tonnes Of Ore Per Year
Year: 1973
Description: Phosphate Rock 28.0 % P205 926000 Tonnes Of Ore Per Year
Year: 1972
Description: Phosphate Rock 27.0 % P205 860000 Tonnes Of Ore Per Year
Year: 1969
Description: Phosphate Rock 24.0 % P205 642000 Tonnes Of Ore Per Year
Year: 1971
Description: Phosphate Rock 27.4 % P205 794000 Tonnes Of Ore Per Year
Year: 1970
Description: Phosphate Rock 26.5 % P205 663000 Tonnes Of Ore Per Year
Year: 1983
Description: Phosphate Rock 27.4 % P205 819000 Tonnes Of Ore Per Year
Year: 1982
Description: Phosphate Rock 27.5 % P205 821000 Tonnes Of Ore Per Year
Year: 1981
Description: Phosphate Rock 27.4 % P205 809000 Tonnes Of Ore Per Year
Year: 1986
Description: Phosphate Rock 31.6% P205 895000 Mt Ore
Year: 1985
Description: Phosphate Rock 28.1% P205 649000 Mt Ore
Year: 1984
Description: Phosphate Rock 27.3 % P205 799000 Tonnes Of Ore Per Year


Deposit

Record Type: Deposit
Operation Category: Past Producer
Plant Type: Beneficiation (Mill)
Plant Subtype: Gravity
Operation Type: Surface
Mining Method: Open Pit
Milling Method: Washing
Year First Production: 1969
Year Last Production: 1983
Years of Production:
Organization:
Significant: Y


Physiography

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


Mineral Deposit Model

Model Name: Phosphate, upwelling type


Orebody

Form: TABULAR, SEDIMENTARY

Form: TABULAR, SEDIMENTARY


Structure

Type: R
Structure: Wooley Valley Anticline

Type: R
Structure: Snowdrift Anticline

Type: R
Structure: Georgetown Syncline

Type: R
Structure: Lanes Butte Syncline


Alterations

Not available


Rocks

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


Analytical Data

Analytical Data: 92 SAMPLES OF PHOSPHATIC SHALE IN SECTION 24 GAVE 36.3 % P2O5 MAX


Materials

Unknown: Orthoclase
Unknown: Collophane
Unknown: Chalcedony
Unknown: Montmorillonite
Unknown: Limonite
Unknown: Kaolinite
Unknown: Sericite
Unknown: Quartz
Unknown: Pyrite
Unknown: Dolomite


Comments

Comment (Ownership): Other Part Owners: N.A. Degerstrom Inc. Dravo Corporation

Comment (Reserve-Resource): Matrix 2, Is A Noncumulative Matrix. Matrix 2, Column 1, Represents The In Situ Reserves At The Central Henry. Deposit. Matrix 1, Column 2, Represents The In Situ Reserves At The North Henry Deposit. Matrix 1, Column 3, Represents The Total In Situ Reserves At The Henry Mine. 1, Represents The Resources At The Central And South Henry Deposits. Row 3 Contains A Resource Estimate Derived By Extending The Downdip Width Dimension To 250 M, And Multipying By The Appropriate Length, Thickness, And Tonnage Factors. Row 4 Is A Resource Estimate Of The Tonnage In The Meade Peak Member Lying Between The Outcrop And A Vertical Projection Of Lease Boundaries. Matrix 2, Column 2, Represents The Resources At The North Henry Deposit. Matrix 2, Column 3, Represents The Total Resources Of The Henry Mine. Matrix 1, Is A Noncumulative Matrix. Matrix 1, Column

Comment (Deposit): This Record Was Compiled For The International Strategic Minerals Inventory. The Data Were Used In Preparation Of The USGS Circular 930 Series Of Reports. Mineral Resource Categories And Codes Herein Are From The International Classification System Recommended By The United Nations Group Of Experts On Definitions And Terminology For Mineral Resources. (See National Resources Forum, V. 4, No. 3, P. 307-313.). Surface 1-3 M Phosphate Concentrate Is Trucked To The Garfield, Utah Fertilizer Plant Or To The Railhead At Phoston, 250 Km Away

Comment (Geology): Carbonate Fluorapatite, Quartz, Illite, Crandallite, Kaolinite At Leached Surface; Phosphate, Deposited In Limestone On West Flank Of Rising Dome In Middle Ordovician. Weathering In Modern Cycle Has Leached Carbonate, Forming A Phosphate-Enriched Residuum. Surface Weathering, When Continued, Forms Some Aluminum Phosphate Mineral (Crandallite) And Forms Kaolinite

Comment (Orebody): Orebody is in an outcrop

Comment (Deposit): Thickness Phosphatic Shale Member ( Section 24 ) Is 163.25 Ft; Thickness Above For 2 Ore Zones

Comment (Development): 480 Acres Lease For Proposed Henry North Mine ( 1975 ) ; Econ.Com: For Proposed Henry North Mine, Stripping Ratio Expected To Be 3 : 1 (Cy Waste : Tons Ore); Henry Mine Reserves To Be Depleted By 1983

Comment (Location): Parts Of Sections 31 , 32 Of T 6 S, R 43 E Are Also Included In Henry Mine; Mine Plotted In T 6 S, R 43 E, Section 19 , Proposed Henry North Mine Would Be Located In T 6 S, R 42 E, Sections 10 , 11 , 14

Comment (Production): Production At Proposed Henry North Mine Scheduled To Begin 1983 And End In 1984 ( USGS, 1975 );

Comment (Workings): Proposed Pit Of Henry North Mine Would Be 6500 Ft Long, 550 Ft Wide, 400 Ft Deep With 45 Deg Slope


References

Reference (Deposit): British Sulphur Corp. Ltd., 1980: World Survey Of Phosphate Deposits, 4th Ed., London

Reference (Deposit): World Mines Register 1981-82, San Francisco

Reference (Reserve-Resource): Emigh, G. D. Petrography, Mineralogy, And Origin Of Phosphate Pellets In The Phosphoria Formation. Id Bureau Of Mines And Geol. Pamphlet No. 114, 1958, 60 Pp.

Reference (Reserve-Resource): Mansfield, G. R. Geography, Geology, And Mineral Resources Of Southeastern Idaho. U.S. Geol. Surv. Prof. Paper 152, 1927.

Reference (Reserve-Resource): Martin, G. W. Mineralogy Of Phosphate Oolites. Econ. Geol., V. 53, No. 8, 1958, Pp. 1046-1048.

Reference (Reserve-Resource): Mcdivitt, J. F. Economic Evaluation Of Phosphate And Other Minerals In Southern Idaho. Id Bureau Of Mines And Geol. Pamphlet No. 111, 1956.

Reference (Reserve-Resource): Garrand, L. J. Phosphate Study Southeastern Idaho. U.S. Forest Service Contract No. 50-820, Garrand Corp., 1975.

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

Reference (Reserve-Resource): Service, A. L. And N. S. Petersen. An Evaluation Of The Western Phosphate Industry And Its Resources (In Five Parts); Part 5, Trends And Outlook. Bumines Ri 6935, 1967, 131 Pp.

Reference (Reserve-Resource): Service, A. L. And C. C. Popoff. An Evaluation Of The Western Phosphate Industry And Its Resources (In Five Parts); Part 1, Introductory Review. Bumines Ri 6485, 1964, 86 Pp.

Reference (Reserve-Resource): Thompson, M. E. Further Studies Of The Distribution Of Uranium In Rich Phosphate Beds Of The Phosphoria Formation. U.S. Geol. Surv. Bulletin 1009-D, 1954, Pp. 107-122.

Reference (Reserve-Resource): Young, W. A., G. M. Pugh, G. D. Vandersluis, And V. Lim. Improved Ore Recovery From Phosphate Open Pits In The Phosphoria Formation. U.S. Bumines Contract J0285017, Dravo Corp., 1980, 319 Pp.

Reference (Reserve-Resource): Mckelvy, V. E., F. C. Armstrong, R. A. Gulbandsen, And R. M. Campbell. Stratigraphic Sections Of The Phosphoria Formation In Idaho. 1947-48, Part Ii. U.S. Geol. Surv. Circ. 301, 1953, Pp. 38-43.

Reference (Reserve-Resource): Powell, J. D. Evaluation Of Phosphate Resources In Southeastern Idaho. Id Bureau Of Mines And Geol. Ic No. 25, 1974, 33 Pp.

Reference (Reserve-Resource): Rule, H. R., D. E. Kirby, And D. C. Dahlin. Recent Advances In Beneficiation Of Western Phosphates. Min. Eng., V. 30, No. 1, 1978, P. 36-40.

Reference (Reserve-Resource): Service, A. L. An Evaluation Of The Western Phosphate Industry And Its Resources (In Five Parts); Part 3, Idaho. Bumines Ri 6801, 1966, 201 Pp.

Reference (Reserve-Resource): Davidson, D. F. Stratigraphic Sections Of The Phosphoria Formation In Idaho, Pt. 2. U.S. Geol. Surv. Circ. 305, 1953.

Reference (Reserve-Resource): Day, R. L. Trends In The Phosphate Industry Of Idaho And The Western Phosphate Field. Id Bureau Of Mines And Geol. Pamphlet 155, 1973, 63 Pp.

Reference (Reserve-Resource): Carter, R. A. An Integrated Industry - Phosphate Mining And Milling In Idaho. Min. Eng., V. 30, No. 1, 1978, Pp. 29-36.

Reference (Reserve-Resource): Thompson, M. E. Distribution Of Uranium In Rich Phosphate Beds Of The Phosphoria Formation. U.S. Geol. Surv. Bulletin 988-D, 1953, Pp. 45-65.

Reference (Reserve-Resource): Li, T. M. Southeastern Idaho Phosphate During Mining: How An Environmental Impact Statement Distorts Growth Plans. Min. Eng., V. 30, No. 1, 1978, Pp. 25-28.

Reference (Deposit): USGS, 1975 , Development Of Phosphate Resources In Southeastern Idaho: Draft Environmental Impact Statement, V. 2 , Pt. 9.1 , P. 2 - 28

Reference (Deposit): Griner, W. C., 1974 , Seventy - First Annual Report Of The Mining Industry Of Idaho For 1973 - 1974 , P. 84


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