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Maybe Canyon Phosphate Mine

Past Producer in Caribou county in Idaho, United States with commodities Phosphorus-Phosphates, Fluorine-Fluorite, REE, Uranium, Vanadium
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Mineral rights holdings
  17. Land status
  18. Ownership information
  19. Production statistics
  20. Reserves and resources
  21. Workings at the site
  22. Links to other databases
  23. Bibliographic references
  24. General comments
  25. Reporter information

Geologic information

Identification information

Deposit ID 10119724
MRDS ID ISM0343
MAS/MILS ID 0160290034
Record type Deposit
Current site name Maybe Canyon Phosphate Mine
Alternate or previous names South Maybe Canyon, Mabie Canyon, Dry Ridge, North Maybe Canyon, Kendall Canyon, Upper Valley, Area C, 22-35

Geographic coordinates

Point of reference Pit
Geographic coordinates: -111.30894, 42.76344 (WGS84)
Elevation 2109
Location accuracy 10(meters)
Relative position This point is on in the open pit that trends NNW and is about 4.7 miles long and is centered between both ends.

Site location context

Political divisions (FIPS codes)

Caribou(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Upper Valley(quadrangle 1:24,000 scale)

Soda Springs(quadrangle 1:100,000 scale)

Preston(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Blackfoot(hydrologic unit)

Upper Snake(hydrologic accounting unit)

Upper Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Caribou-Targhee National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Idaho Caribou

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 008 S 044 E 10 SWNWNE Idaho

Comments on the location information

  • ABOUT 32 KM EAST OF SODA SPRINGS, RAIL CONNECTION WITH THE FERTILIZER PLANT AT CONDA
  • NORTH MAYBE CANYON MINE PLOTTED IN SECTION 4 , T 8 S, R 44 E ; THE PROPOSED SOUTH MAYBE CANYON MINE WOULD BE LOCATED IN SECTIONS 10 , 11 , 14 , 15 OF T 8 S, R 44 E

Commodities

Commodity Importance
Phosphorus-Phosphates Primary
Fluorine-Fluorite Critical Tertiary
REE Critical Tertiary
Uranium Tertiary
Vanadium Critical Tertiary

Materials information

Materials Type of material
Chalcedony Unknown
Collophane Unknown
Dolomite Unknown
Kaolinite Unknown
Limonite Unknown
Montmorillonite Unknown
Orthoclase Unknown
Pyrite Unknown
Quartz Unknown
Sericite Unknown

Analytical data

Result 170 SAMPLES OF STRATIGRAPHIC SECTION GAVE 37.7 % P2O5 MAX (SECTION 10 , T 8 S, R 44 E \n

Mineral occurrence model information

Model code 243
USGS model code 34c
Deposit model name Phosphate, upwelling type

Host and associated rocks

  • Host or associated Host
    Rock type
    Rock unit name Phosphoria Formation
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Shale
    Rock unit name Phosphoria Formation
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Phosphoria Formation
  • Host or associated Associated
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Wells Formation
  • Host or associated Associated
    Rock type Sedimentary Rock > Carbonate > Limestone
    Rock unit name Wells Formation

Nearby scientific data

Pit (1) -111.30894, 42.76344
ListMap

Economic information

Geologic structures

Type of structure Local
Structure name Minor faulting
Type of structure Regional
Structure name Dry Valley Anticline

Ore body information

  • General form TABULAR, SEDIMENTARY
    Strike N25W
    Dip 35E
    Thickness 14.5M
    Length 2232M
    Width 135M
    Area 801HA
    Depth to top 39M
    Field Value
    MAS Matrix # 1
    MAS Column # 1
    Type of Orebody #1 SEDIMENTARY
    Shape of Orebody #1 TABULAR
    Primary mode of Origin SEDIMENTATION
    Secondary mode of Origin RESIDUAL CONCENT
    Primary Ore Control BEDDING
    Secondary Ore Control LITHOLOGY
    Degree of Wallrock Alter. NONE
    Type of Wallrock Alter. #1 OTHER
    Strike And Dip N25W:35E
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 1
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 840928

Controls for ore emplacement

  • Bedding
  • Structure - fault and fold

Comments on the geologic information

  • 202.1 FT THICKNESS PHOSPHATIC SHALE MEMBER (SECTION 10 , T 8 S, R 44 E), 158.4 FT (SECTION 28 , T 7 S, R 44 E); THICKNESS ABOVE FOR 2 ORE ZONES. OVERBURDEN IS USUALLY SHALLOW, CONSISTING PRIMARILY OF WEATHERED CHERT, LIMESTONE, AND PHOSPHATE ROCK FLOAT.

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Both
Significant Yes
Discovery year 1950
Discoverer Central Farmers Fertilizer Co.
Mining method Open Pit
Year of first production 1966
Year of last production 1983
Plant type Beneficiation (Mill)
Plant subcategory Gravity
Milling method Thermal Decomposition

Mining district

District name Slug Creek
District name SE Idaho Phosphate District

Mineral rights holdings

Type of mineral rights Federal Lease

Land status

Ownership category National Forest
Area name Caribou National Forest

Ownership information

  • Type Owner
    Owner Conda Partnership
    Interest 100
    Home office Idaho
    Year 1984
    First year 1984
  • Type Operator
    Owner Washington Const. Co.
    Home office Idaho
    Year 1984
    First year 1984
  • Type Operator
    Owner Beker Industries, Inc.
    First year 1975

Production statistics

  • Year 1966
    Description Phosphate Rock 29.8 % P205 550000 Tonnes Of Ore Per Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 30wt-pct
  • Year 1967
    Description Phosphate Rock 27.9 % P205 430000 Tonnes Of Ore Per Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 28wt-pct
  • Year 1972
    Description Phosphate Rock 25.0 % P205 300000 Tonnes Of Ore Per Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 25wt-pct
  • Year 1973
    Description Phosphate Rock 25.4 % P205 1040000 Tonnes Of Ore Per Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 25wt-pct
  • Year 1974
    Description Phosphate Rock 25.9 % P205 1650000 Tonnes Of Ore Per Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 26wt-pct
  • Year 1975
    Description Phosphate Rock 26.8 % P205 2120000 Tonnes Of Ore Per Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 27wt-pct
  • Year 1976
    Description Phosphate Rock 28.0 % P205 1350000 Tonnes Of Ore Per Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 28wt-pct
  • Year 1977
    Description Phosphate Rock 26.7 % P205 1430000 Tonnes Of Ore Per Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 27wt-pct
  • Year 1978
    Description Phosphate Rock 26.1 % P205 1960000 Tonnes Of Ore Per Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 26wt-pct
  • Year 1979
    Description Phosphate Rock 25.9 % P205 2349000 Tonnes Of Ore Per Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 26wt-pct
  • Year 1980
    Description Phosphate Rock 25.9 % P205 2485000 Tonnes Of Ore Per Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 26wt-pct
  • Year 1981
    Description Phosphate Rock 25.5 % P205 2209000 Tonnes Of Ore Per Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 26wt-pct
  • Year 1982
    Description Phosphate Rock 25.3 % P205 871000 Tonnes Of Ore Per Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 25wt-pct
  • Year 1983
    Description Phosphate Rock 24.5 % P205 2420000 Tonnes Of Ore Per Year
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Phosphorus-Phosphates Phosphorus 25wt-pct

Comments on the production information

  • 1986 UPDATE. MINE DID NOT PRODUCE IN 1984. CONDA PARTNERSHIP HAS MOVED OPERATIONS TO CHAMP/MT. FUEL. PRODUCTION UNLIKELY IN FUTURE. EST. 1984 PRODUCTION: 2.7 MILLION T AT 25% P2O5.

Reserves and resources

  • Type In-situ
    Estimate year 1975
    Indicated 9900000mt ore
    Demonstrated 9900000mt ore
    Inferred 16199999mt ore
    Total resources 26099999mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 18 wt-pct Phosphorus Major 1975
  • Type In-situ
    Estimate year 1975
    Indicated 33400000mt ore
    Demonstrated 33400000mt ore
    Inferred 56700000mt ore
    Total resources 90100000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 25 wt-pct Phosphorus Major 1975
  • Type In-situ
    Estimate year 1975
    Indicated 23500000mt ore
    Demonstrated 23500000mt ore
    Inferred 40600000mt ore
    Total resources 64100000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 28 wt-pct Phosphorus Major 1975

Comments on the reserve resource information

  • THE TONNAGE WAS OBTAINED FROM THE CONDA PARTNERSHIP. THE GRADE WAS ESTIMATED FROM CONDA PARTNERSHIP INFORMATION.

Workings at the site

  • Type of workings Surface
    Area 141HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method ESTIMATE
    Mining Method OPEN PIT
    Swell Factor .67
    Percent Waste Rock 86.7
    Avg. Overburden Thickness 39
    Primary Material Cover M-HARD ROCKS
    Percentage 60
    Secondary Material Cover SAND, GRAVEL
    Percentage 40
    Hardness of Ore SAND, GRAVEL
    Avg. Bench Height (meters) 15
    Max. Pit Slope (degrees) 45
    Capacity 5833
    Capacity Units MT ORE/DAY
    Preprod. Stripping Vol. 0
    Unit Production Cost 10.73
    Units of Production $/MT ORE
    Operating Days per Year 156
    Operating Shifts per Day 2
    Year of Information 1984

Comments on the workings information

  • PROPOSED MINE PIT WILL COVER 640 ACRES AND BE ABOUT 10,000 FT LONG, 700 FT WIDE, 250 FT DEEP

Comments on development

  • PROPOSED MINE ON 1522.4 ACRE LEASE ( 1975 ) ; ECON.COM: FOR PROPOSED SOUTH MAYBE CANYON MINE, STRIPPING RATIO WOULD BE 1.8 : 1 (CY WASTE : TONS ORE)

Reference information

Bibliographic references

  • Reserve-Resource

    CARTER, R. A. AN INTEGRATED INDUSTRY - PHOSPHATE MINING AND MILLING IN IDAHO. MIN. ENG., V. 30, NO. 1, 1978. PP. 29-36.

  • Deposit

    BRITISH SULPHUR CORP. LTD., 1980: WORLD SURVEY OF PHOSPHATE DEPOSITS, 4TH ED., LONDON

  • Deposit

    GRINER, W. C., 1974 , SEVENTY - FIRST ANNUAL REPORT OF THE MINING INDUSTRY OF IDAHO FOR 1973 - 1974 , P. 85

  • Deposit

    MINOBRAS, 1975 , IDAHO INDUSTRIAL MINERALS

  • Reserve-Resource

    CRESSMAN, E. R. AND R. A. GULBRANDSEN. GEOLOGY OF THE DRY VALLEY QUADRANGLE, IDAHO. U.S. GEOL. SURV. BULL. 1015-I, 1955, PP. 357-370.

  • Deposit

    MC KELVEY, V. E., AND OTHERS, 1953 , STRATIGRAPHIC SECTIONS OF THE PHOSPHORIA FORMATION IN IDAHO, 1947 - 1948 , PART 1 : USGS CIRC. 208 , 49 P.

  • 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.

  • 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.

  • Reserve-Resource

    GARRAND, L. J. PHOSPHATE STUDY SOUTHEASTERN IDAHO. U.S. FOREST SERVICE CONTRACT NO. 50-820, GARRAND CORP., 1975.

  • 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.

  • Reserve-Resource

    MANSFIELD, G. R. GEOGRAPHY, GEOLOGY, AND MINERAL RESOURCES OF SOUTHEASTERN IDAHO. U.S. GEOL. SURV. PROF. PAPER 152, 1927.

  • Reserve-Resource

    MARTIN, G. W. MINERALOGY OF PHOSPHATE OOLITES. ECON. GEOL, V. 53, NO. 8, 1958, PP. 1046-1048.

  • 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.

  • Reserve-Resource

    POWELL, J. D. EVALUATION OF PHOSPHATE RESOURCES IN SOUTHEASTERN IDAHO. ID BUREAU OF MINES AND GEOL. IC NO. 25, 1974, 33 PP.

  • Reserve-Resource

    RICHARDS, R. W. GEOLOGY OF THE PHOSPHATE DEPOSITS OF GEORGETOWN, IDAHO. U.S. GEOL. SURV. BULL. 577, 1914.

  • Reserve-Resource

    RIOUX, R. C. GEOLOGIC MAP OF THE UPPER VALLEY QUADRANGLE, CARIBOU COUNTY, IDAHO. U.S. GEOL. SURV. MAP GQ-1194, 1975.

  • Reserve-Resource

    RULE, A. R., D. E. KIRBY, AND D. C. DAHLIN. RECENT ADVANCES IN BENEFICIATION OF WESTERN PHOSPHATES. MIN. ENG., V. 30, NO. 1, 1978, PP. 36-40.

  • Reserve-Resource

    SERVICE, A. L. AND POPOFF. AN EVALUATION OF THE WESTERN PHOSPHATE INDUSTRY AND ITS RESOURCES (IN FIVE PARTS); PART I, INTRODUCTORY REVIEW. BUMINES RI 6485, 1964, 86 PP.

  • 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.

  • 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.

  • Reserve-Resource

    THOMPSON, M.E. DISTRIBUTION OF URANIUM IN RICH PHOSPHATE BEDS OF THE PHOSPHORIA FORMATION. U.S. GEOL. SURV. BULL. 988-D, 1953, PP. 45-65.

  • Reserve-Resource

    THOMPSON, M. E. FURTHER STUDIES OF THE DISTRIBUTION OF URANIUM IN RICH PHOSPHATE BEDS OF THE PHOSPHORIA FORMATION. U.S. GEOL. SURV. BULL. 1099-D, 1954, PP. 107-122.

  • 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. FOUR VOLUMES, 1978.

General comments

Subject category Comment text
Deposit LOCATED ON U.S. FOREST SERVICE LANDS. MAYBE CANYON MINED OUT. NORTH MAYBE CANYON EXTENSION MINE MAY START UP IN 1994 OR 1995.
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 UNPUBLISHED REPORT IN PREPARATION BY J.B. CATHCART HAS BEEN USED FOR THIS COMPLETION

Reporter information

Type Date Name Affiliation Comment
Reporter 06-MAR-95 Buckingham, David A. U.S. Bureau of Mines
Reporter 01-JAN-83 Saam, Henning, G. Bundesanstalt Fuer Geowissenschaften und Rohstoffee (Germany)
Updater 26-OCT-10 Causey, J. Douglas U.S. Geological Survey
Reporter 01-JUN-76 Siefken, Robert R. (Miller, Pat) U.S. Geological Survey This reporter created the old MRDS record W026183.

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

Maps centered on this site