International Molybdenum Mine

Past Producer in Boundary county in Idaho, United States with commodities Molybdenum, Cobalt, Nickel, Platinum
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. Alteration
  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. Land status
  17. Ownership information
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. Reporter information

Geologic information

Identification information

Deposit ID 10069968
MRDS ID W007778
MAS/MILS ID 0160210014
Record type Site
Current site name International Molybdenum Mine
Alternate or previous names Boundary County Deposit, Cow Creek, Rideout

Geographic coordinates

Geographic coordinates: -116.83638, 48.86736 (WGS84)
Elevation 1859
Relative position 18 MI SW OF PORTHILL; 6 1/2 MI NE OF UPPER PRIEST LAKE

Site location context

Political divisions (FIPS codes)

Boundary(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Caribou Creek(quadrangle 1:24,000 scale)

Bonners Ferry(quadrangle 1:100,000 scale)

Sandpoint(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Kootenai(hydrologic unit)

Kootenai(hydrologic accounting unit)

Kootenai-Pend Oreille-Spokane(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

ST(Federal land areas administered by ST)

Geographic areas

Country State County
United States Idaho Boundary

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 064N 004W 27 NENE Idaho

Comments on the location information

  • In Phoebe Tip Country

Commodities

Commodity Importance
Molybdenum Primary
Cobalt Critical Tertiary
Nickel Critical Tertiary
Platinum Critical Tertiary

Materials information

Materials Type of material
Molybdenite Ore
Molybdite Ore
Quartz Gangue

Alteration

  • (Local) Oxidation

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Pegmatite
    Stratigraphic age (youngest) Late Cretaceous
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Nelson Or Kaniksu Batholith-Granite;Pegmatite
    Rock description Nelson Or Kaniksu Batholith-Granite;Pegmatite
  • Host or associated Host
    Rock type Plutonic Rock > Pegmatite
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -116.83638, 48.86736

Economic information

Geologic structures

Type of structure Local
Structure description Great Numbers Of Joint Plane Cracks

Ore body information

  • General form TABULAR
    Strike N 37 DEG W
    Dip 50 DEG SW
    Thickness 0.91M

Controls for ore emplacement

  • Joints

Economic information about the deposit and operations

Operation type Underground
Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1938

Mining district

District name Porthill District

Land status

Ownership category State

Ownership information

  • Type Operator
    Owner International Molybdenum Co. ( 1938 )

Workings at the site

  • Type of workings Surface/Underground
    Length 306.32M

Comments on the workings information

  • Equipment: 2 Cabins, Hand Mining Equipment

Comments on development

  • 4 Unpatented Claims

Reference information

Bibliographic references

  • Deposit

    Kirkham, Virgil R. D., And Ellis, Ernest W., 1926, Geology And Ore Deposits Of Boundary County, Idaho: Idaho Bureau Of Mines And Geology Bulletin, No. 10, 78 P.

  • Deposit

    Hubbard, C.R., 1955 , A Survey Of The Mineral Resources Of Idaho: Idaho Bureau Of Mines And Geology Pamphlet 105 , 56 P.

  • Deposit

    King, R.U., 1964 , Mineral Resources - Molybdenum, In Mineral And Water Resources Of Idaho: Idaho Bureau Of Mines And Geology Spec. Rept. No. 1 , P. 133 - 138

  • Deposit

    1926 Geolmap Idaho Bureau Of Mines & Geol. Bulletin 10

  • Deposit

    1955 Compile Idaho Bureau Of Mines And Geology Pamphlet 105

  • Deposit

    1964 Compile Idaho Bureau Of Mines And Geology Spec. Rept. No. 1

  • Production

    Hubbard, C.R., 1955 , Idaho Bureau Of Mines And Geology Pamphlet 105 , P. 50

  • Deposit

    U.S.Bureau Of Mines, Wfoc, Mineral Property File 0160210014.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1974 Miller, Pat J. U.S. Geological Survey
Reporter 14-NOV-1983 Western Field Operations Center (WFOC) U.S. Bureau of Mines

Beyond USGS

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