Bear Trap Lode Mine

Past Producer in Lemhi county in Idaho, United States with commodity Fluorine-Fluorite
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. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10071039
MRDS ID W014230
MAS/MILS ID 0160590381
Record type Site
Current site name Bear Trap Lode Mine
Alternate or previous names Lode No. 4, Bear Trap

Geographic coordinates

Geographic coordinates: -114.49343, 44.85738 (WGS84)
Elevation 2195
Relative position 27.5 MI NW OF CHALLIS

Site location context

Political divisions (FIPS codes)

Lemhi(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Meyers Cove Point(quadrangle 1:24,000 scale)

Challis(quadrangle 1:100,000 scale)

Challis(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Middle Fork Salmon(hydrologic unit)

Salmon(hydrologic accounting unit)

Lower Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Salmon-Challis 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 Lemhi

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 018N 017E 29 SWSWC Idaho

Commodities

Commodity Importance
Fluorine-Fluorite Critical Primary

Materials information

Materials Type of material
Fluorite Ore
Barite Gangue
Chalcedony Gangue
Pyrite Gangue

Alteration

  • (Local) Silicified

Analytical data

Result RANDOM SAMPLE AVG. 40 % CAF2
Result DRILL HOLE NO. 1 SHOWED 11 FT OF 18 % CAF2
Result DRILL HOLE NO. 3 FOUND 6 FT. OF 59% CAF2

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic)
    Rock unit name Volcanic Rocks
    Rock description Volcanic Rocks
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic)

Nearby scientific data

(1) -114.49343, 44.85738

Economic information

Ore body information

  • General form IRREGULAR SEAMS & STRINGERS
    Strike N 40 DEG E
    Dip 40 DEG NW
    Thickness 2.44M
    Length 100.58M
    Width 1.68M

Controls for ore emplacement

  • Fissure - Fracture Zone

Economic information about the deposit and operations

Development status Past Producer
Commodity type Non-metallic
Deposit size Small
Significant No

Mining district

District name Gravel Range District

Land status

Ownership category National Forest
Area name Salmon National Forest

Comments on the production information

  • Deposit Has Been A Minor Producer

Comments on the workings information

  • Several Cuts And Pits; 8 Holes By Aluminum Co. Of America; Both Open-Pit And Underground Mining

Comments on development

  • Econ.Com: Beartrap Regarded As Promising Deposit - Has Contributed Little Of Its Potential Reserve

Reference information

Bibliographic references

  • Deposit

    Cox, D. C. , 1954, Fluorspar Deposits Near Meyers Cove, Lemhi County, Idaho: USGS Bulletin 1015-A, 21 P.

  • Deposit

    Anderson, A. L., 1954, Fluorspar Deposits Near Meyers Cove , Lemhi County, Idaho: Idaho Bureau Of Mines And Geology Pamphlet 98, 34 P.

  • Deposit

    Minobras, 1975: Idaho Industrial Minerals: Minobras, P. 45 - 47.

  • Deposit

    1944 Direxpl USBM, Ida. Bureau Of Mines & Geol. Pamph 98

  • Deposit

    1947 Direxpl Aluminum Co. Of America, Ida. Bureau Of Mines & Geol. Pamphlet 98.

  • Deposit

    1954 Recon Cox, D. C., Bulletin 1015-A

  • Deposit

    1954 Recon Idaho Bureau Of Mines And Geology Pamphlet 98

  • Deposit

    US Bur Mines War Min Rept 145 Flrite Vns Near Meyers Cove 7

  • Deposit

    US Bur Mines War Min Rept 460 1945 Meyers Cove Flspr Deposit

  • Deposit

    Shawe & Others 1976 USGS Prof Paper 933 P 35-38

  • Production

    Anderson, A. L., 1954, Ida. Bureau Of Mines & Geol. Pamphlet 98, P. 24.

General comments

Subject category Comment text
Deposit Fluorspar Veins Occur On Hanging Wall
Deposit 10-76 A Total Of 1,304 Sh Tons Was Produced From One Adit An Stopes From 1952-1953 (Anderson 1954 P 23-24). 10-76 Alcoa Explored The Property With 8 Diamond Drill Holes 1947. The Vein Was Apparently Intersected At Depths Up To 8 (244 M) By Several Of The Holes.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1976 Siefken, Robert R. (Miller, Pat) U.S. Geological Survey
Reporter 08-JUN-1984 Kauffman, John D. U.S. Bureau of Mines

Beyond USGS

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