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Dry Valley 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. Reserves and resources
  20. Workings at the site
  21. Links to other databases
  22. Bibliographic references
  23. General comments
  24. Reporter information

Geologic information

Identification information

Deposit ID 10120130
MRDS ID W026127
MAS/MILS ID 0160290165
Record type Deposit
Current site name Dry Valley Mine
Alternate or previous names Dry Valley

Geographic coordinates

Point of reference Ore Body
Geographic coordinates: -111.32869, 42.73968 (WGS84)
Elevation 2000
Location accuracy 10(meters)
Relative position Placed point in center of most recent pit on SE end of mined deposit that has been mined along NNW striking beds for at least 5.5 miles.

Site location context

Political divisions (FIPS codes)

Caribou(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Dry 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)

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 08 Idaho

Comments on the location information

  • MINE SITE ALSO IN THE FOLLOWING AREAS: DRY VALLEY QUAD; SECTIONS 8,9,16,21,22, T8S R44E. UPPER VALLEY QUAD; SECTION 31 T7S R44E, SECTIONS 5,6 T8S R44E. DUE TO CONTRACT PROBLEMS WITH THE INDIANS ON THE RESERVATION THE MINE MAY GO ON LINE AS EARLY AS 1987.

Commodities

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

Materials information

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

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
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Sedimentary Rock > Chemical Sediment > Chert
    Rock unit name Phosphoria Formation
    Stratigraphic age (youngest) Late Permian

Nearby scientific data

Ore Body (1) -111.32869, 42.73968
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure name Schmid Ridge Syncline

Ore body information

  • General form IRREGULAR
    Strike N40W
    Dip 30W
    Thickness 14.6M
    Length 7630M
    Area 300HA
    Depth to top 0M
    Field Value
    MAS Matrix # 1
    MAS Column # 2
    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
    Strike And Dip N40W:30W
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 2
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830316
  • General form IRREGULAR
    Strike N40W
    Dip 30W
    Thickness 1.5M
    Length 10060M
    Area 300HA
    Depth to top 0M
    Field Value
    MAS Matrix # 3
    MAS Column # 2
    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
    Strike And Dip N40W:30W
    Minimum Depth to Top 0
    Avg. Thick. Unconsol. Mat. 2
    Min. Thick. Unconsol. Mat. 0
    Date of Last Modification 830316

Controls for ore emplacement

  • Bedding

Economic information about the deposit and operations

Operation type Surface
Development status Past Producer
Commodity type Both
Deposit size Medium
Significant Yes
Mining method Open Pit
Plant type Beneficiation (Mill)
Milling method Washing

Mining district

District name Slug Creek Mining District

Mineral rights holdings

Type of mineral rights Federal Lease
Type of mineral rights Patented
Type of mineral rights State Lease

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner U.S. Forest Service
    Year 1978
  • Type Lessee/Owner
    Owner FMC Corp.
    Year 1978
  • Type Owner
    Owner U.S. Bureau Of Land Management
    Year 1978
  • Type Owner
    Owner State Of Idaho
    Home office Idaho
    Year 1978

Comments on the production information

  • 89% OF ROCK (BY TONNAGE WEIGHT) THAT GOES INTO THE PLANT COMES OUT OF THE CALCINER.

Reserves and resources

  • Type In-situ
    Estimate year 1975
    Indicated 7342000mt ore
    Demonstrated 7342000mt ore
    Total resources 7342000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 28.8 wt-pct Phosphorus Major 1975
  • Type In-situ
    Estimate year 1975
    Indicated 3994000mt ore
    Demonstrated 3994000mt ore
    Total resources 3994000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 16.8 wt-pct Phosphorus Major 1975
  • Type In-situ
    Estimate year 1975
    Indicated 11336000mt ore
    Demonstrated 11336000mt ore
    Total resources 11336000mt ore
    Commodity Subtype Grade units Group Importance Year
    Phosphorus-Phosphates P2O5 24.6 wt-pct Phosphorus Major 1975

Comments on the reserve resource information

  • GARRAND RESERVES ARE FOR THE FOLLOWING ORE BLOCKS: DRY VALLEY QUAD: 18D-21D UPPER VALLEY QUAD: 3A-7A

Workings at the site

  • Type of workings Surface
    Area 300HA
    Field Value
    MAS Development Schedule # 1
    Mining Record # 1
    Status of Mining Method PROPOSED
    Mining Method OPEN PIT
    Swell Factor .66
    Percent Waste Rock 76.7
    Avg. Overburden Thickness 2
    Primary Material Cover SAND, GRAVEL
    Secondary Material Cover HARD ROCKS
    Tertiary Material Cover M-HARD ROCKS
    Hardness of Ore M-HARD ROCKS
    Avg. Bench Height (meters) 13
    Max. Pit Slope (degrees) 45
    Capacity 3901
    Capacity Units MT ORE/DAY
    Unit Production Cost 10.06
    Units of Production $/MT ORE
    Operating Days per Year 350
    Operating Shifts per Day 1
    Year of Information 1984

Comments on the workings information

  • 4 OPEN - PITS PROPOSED RANGE IN DEPTH FROM 50 - 350 FT AND WILL TOTAL 24,000 FT IN LENGTH; WIDTH WILL RANGE FROM 300 - 1200 FT

Comments on development

  • PHOSPHATE LEASES TOTAL 2120 ACRES ( 1975 ) . STRIPPING RATIO WILL NOT EXCEED 2 : 1 (EXPRESSED AS CY WASTE: TONS ORE)

Reference information

Bibliographic references

  • Deposit

    MSHA REPORT DATED MARCH-APRIL, 1981

  • Reserve-Resource

    GARRAND, L. J., 1975, PHOSPHATE STUDY SOUTHEASTERN IDAHO, FOR U.S. DEPARTMENT OF AGRICULTURE, CARIBOU NATIONAL FOREST, U.S. DEPARTMENT OF AGRICULTURE CONTRACT NO. 50-820: GARRAND CORP.

  • Geology

    EMIGH, G. D., 1958, PETROGRAPHY, MINERALOGY AND ORIGIN OF PHOSPHATE PELLETS IN THE PHOSPHORIA FORMATION: IDAHO BUREAU OF MINES AND GEOLOGY, PAMPHLET NO. 114, 60 P.

  • Deposit

    LI, TA M., 1978, SOUTHEASTERN IDAHO PHOSPHATE MINING: HOW AN ENVIRONMENTAL IMPACT STATEMENT DISTORTS GROWTH PLANS: MINING ENGINEERING, V. 30, NO. 1, P. 25-28.

  • Geology

    MARTIN, G. W., 1958, MINERALOGY OF PHOSPHATE OOLITES: ECONOMIC GEOLOGY, V. 53, NO. 8, DECEMBER, P. 1046-1048.

  • Reserve-Resource

    U.S. GEOLOGICAL SURVEY, BUREAU OF LAND MANAGEMENT, AND FOREST SERVICE, 1978, FINAL ENVIRONMENTAL IMPACT STATEMENT/ DEVELOPMENT OF PHOSPHATE RESOURCES IN SOUTHEASTERN IDAHO, FOUR VOLUMES.

  • Deposit

    CARTER, RUSSELL A., 1978, AN INTEGRATED INDUSTRY - PHOSPHATE MINING AND MILLING IN IDAHO: MINING ENGINEERING, V. 30, NO. 1, P. 29-36.

  • Deposit

    RULE, A. R., D. E. KIRBY, AND D. C. DAHLIN, 1978, RECENT ADVANCES IN BENEFICIATION OF WESTERN PHOSPHATES: MINING ENGINEERING, V. 30, NO. 1, P. 37-40.

  • Deposit

    MANSFIELD, G.R., 1927, GEOGRAPHY, GEOLOGY, AND MINERAL RESOURCES OF PART OF SOUTHEASTERN IDAHO: USGS PROF. PAPER 152.

  • Deposit

    CRESSMAN, E.R., 1955, GEOLOGY OF THE DRY VALLEY QUADRANGLE, IDAHO, USGS BULL 1015-I

  • Deposit

    RICHARDS, R.W., 1914, GEOLOGY OF THE PHOSPHATE DEPOSITS NORTHEAST OF GEORGETOWN, IDAHO, USGS BULL 577.

  • Deposit

    MCKELVEY, V.E., 1953A, STRATIGRAPHIC SECTIONS OF THE PHOSPHORIA FORMATION IN IDAHO, 1947-48, PART I: USGS CIRC. 208.

  • Deposit

    O'MALLEY, F.W., 1953, STRATIGRAPHIC SECTIONS OF THE PHOSPHORIA FORMATION IN IDAHO, 1947-48, PART 3: USGS CIRC. 262.

  • Deposit

    SERVICE, A. L., 1966, AN EVALUATION OF THE WESTERN PHOSPHATE INDUSTRY AND ITS RESOURCES (IN FIVE PARTS), 3. IDAHO: U.S. BUREAU OF MINES, REPORT OF INVESTIGATIONS 6801, 201 P.

  • Deposit

    SERVICE, A. L. AND POPOFF, C. C., 1964, AN EVALUATION OF THE WESTERN PHOSPHATE INDUSTRY AND ITS RESOURCES (IN FIVE PARTS), 1. INTRODUCTORY REVIEW: U.S. BUREAU OF MINES, REPORT OF INVESTIGATIONS 6485, 86 P.

  • Deposit

    DAY, R. L., 1973, TRENDS IN THE PHOSPHATE INDUSTRY OF IDAHO AND THE WESTERN PHOSPHATE FIELD: IDAHO BUREAU OF MINES AND GEOLOGY, PAMPHLET 155, 63 P.

  • Deposit

    POWELL, J. D., 1974, EVALUATION OF PHOSPHATE RESOURCES IN SOUTHEASTERN IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY, INFORMATION CIRCULAR NO. 25, 33 P.

  • Deposit

    RIOUX, R.L., 1975, GEOLOGIC MAP OF THE UPPER VALLEY QUAD., CARIBOU COUNTY, IDAHO, USGS MAP GQ-1194.

  • Deposit

    SERVICE, A. L., AND PETERSEN, N. S., 1967, AN EVALUATION OF THE WESTERN PHOSPHATE INDUSTRY AND ITS RESOURCES (IN FIVE PARTS) TRENDS AND OUTLOOK: U.S. BUREAU OF MINES, REPORT OF INVESTIGATIONS 6935, 131 P.

  • Deposit

    THOMPSON, M. E., 1953, DISTRIBUTION OF URANIUM IN RICH PHOSPHATE BEDS OF THE PHOSPHORIA FORMATION: U.S. GEOLOGICAL SURVEY BULLETIN 988-D, P. 45-65.

  • Deposit

    THOMPSON, M. E., 1954, FURTHER STUDIES OF THE DISTRIBUTION OF URANIUM IN RICH PHOSPHATE BEDS OF THE PHOSPHORIA FORMATION: U.S. GEOLOGICAL SURVEY BULLETIN 1009-D, P. 107-122

  • Deposit

    MC DIVITT, J. F., 1956, ECONOMIC EVALUATION OF PHOSPHATE AND OTHER MINERALS IN SOUTHERN IDAHO: IDAHO BUREAU OF MINES AND GEOLOGY, PAMPHLET NO. 111, 48 P.

General comments

Subject category Comment text
General Causey added information from old MAS duplicate record (SEQ=0160290016) and deleted it.

Reporter information

Type Date Name Affiliation Comment
Reporter 29-JUL-97 Spear, James M. U.S. Bureau of Mines
Reporter 01-AUG-76 Matthews, John Y.; Miller, Pat U.S. Geological Survey
Updater 26-OCT-10 Causey, J. Douglas U.S. Geological Survey Merged pertinent info from DEP_ID 10144224 and deleted that record.

Beyond USGS

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

Maps centered on this site