1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Lucky Horseshoe Claim Group

Prospect in Lemhi county in Idaho, United States with commodities Thorium, REE
Map
XML
JSON
KML
A
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. Mineral rights holdings
  17. Land status
  18. Ownership information
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10071945
MRDS ID W015728
MAS/MILS ID 0160590206
Record type Site
Current site name Lucky Horseshoe Claim Group

Geographic coordinates

Geographic coordinates: -113.4956, 44.98379 (WGS84)
Elevation 1890
Relative position 12 MI NE OF LEMHI, 7.5 MI E OF TENDOY

Site location context

Political divisions (FIPS codes)

Lemhi(county)

Idaho(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Lemhi Pass(quadrangle 1:24,000 scale)

Leadore(quadrangle 1:100,000 scale)

Dubois(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lemhi(hydrologic unit)

Salmon(hydrologic accounting unit)

Lower Snake(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Bureau of Land Management(Bureau of Land Management ID)

Bureau of Land Management ID BLM(Type of land area)

BLM(Federal land areas administered by BLM)

Geographic areas

Country State County
United States Idaho Lemhi

Public Land Survey System information

Meridian Township Range Section Fraction State
Boise 019N 025E 09 NWNWSE Idaho

Comments on the location information

  • On Flume Creek About A Mi Above Junction With Agency Creek; Adjoins Independence Group On The Se

Commodities

Commodity Importance
Thorium Primary
REE Critical Primary

Materials information

Materials Type of material
Allanite Ore
Chalcopyrite Ore
Monazite Ore
Rutile Ore
Thorite Ore
Xenotime Ore
Apatite Gangue
Barite Gangue
Biotite Gangue
Calcite Gangue
Epidote Gangue
Feldspar Gangue
Goethite Gangue
Limonite Gangue
Muscovite Gangue
Quartz Gangue
Tourmaline Gangue

Alteration

  • (Local) Sericite

Analytical data

Result 2 CHIP SAMPLES HAD 0.80 AND 0.89% THO2
Result 1 CHANNEL SAMPLE HAD 0.047% THO2
Result HIGHEST READING 0.4 MR/HR FROM OTHER SAMPLES

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Silt
    Rock unit name Belt Supergroup
    Rock description Belt Supergroup-Siltite;Lemhi Quartzite
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -113.4956, 44.98379
ListMap

Economic information

Geologic structures

Type of structure Local
Structure name Faults
Type of structure Local
Structure name Cleavage
Type of structure Local
Structure name Brecciation

Ore body information

  • General form IRREGULAR STREAKS, ZONES, PODS, SEAMS, BUNCHES
    Strike N 60 DEG W
    Dip 35 DEG SW
    Thickness 0.46M
    Length 804.65M
    Width 6.1M

Controls for ore emplacement

  • Shearing
  • Fractures
  • Bedding

Comments on the geologic information

  • Original Structures entry:
    Local - Faults, Cleavage, Brecciation
  • Original concentration process entry:
    Hydrothermal
  • Original alteration entry:
    Local - Sericite
  • Original ore control entry:
    Sheared And Complexly Fractured Zone, Bedding

Economic information about the deposit and operations

Operation type Underground
Development status Prospect
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name McDevitt District

Mineral rights holdings

Type of mineral rights Located Claim

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner Fred Guderjoin

Comments on the workings information

  • 2 Short Adits, Diamond Drill Holes, Bulldozer Cuts, Small Open Pits

Comments on development

  • 12 Claims ; Econ.Com: Powers Estimates That No More Than 0.5% Tho Ore Could Be Mined

Reference information

Bibliographic references

  • Deposit

    Anderson, A. L., 1958, Uranium, Thorium, Columbium, And Rare Earth Deposits Of The Salmon Region, Lemhi County, Idaho: Idaho Bureau Of Mines An Geology Pamphlet 115, 81 P.

  • Deposit

    Eng, F. G., 1960, Geology Of The Lucky Horseshoe Thorium Deposit, Lemhi County, Idaho: Moscow, Idaho, Univ. Of Idaho, M. S. Thesis, 38 P.

  • Deposit

    Staatz, M. H., 1972, Geology And Description Of Thorium-Bearing Veins, Lemhi Pass Quadrangle, Idaho And Montana: USGS Bulletin 1351, 94 P.

  • Deposit

    Powers, H. A., 1955, Lucky Horseshoe And Independence Group: Idaho Bureau Of Mines And Geology Open-File Rept.

  • Deposit

    Staatz, Bunker, and Bush 1971 USGS Prof Paper 750-C, P 136-140

  • Deposit

    Anderson, 1961, Econ Geol, V 56, P 177-197

  • Deposit

    Ross and George, 1966, USBM Res Rept 62.1 34 P Salt Lake City Met Res

General comments

Subject category Comment text
Deposit Much Of The Ore Resembles A Banded Gneiss

Reporter information

Type Date Name Affiliation Comment
Reporter 01-OCT-1974 Miller, Pat J. U.S. Geological Survey
Reporter 26-OCT-1988 Kauffman, John D. U.S. Bureau of Mines

Beyond USGS

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

Maps centered on this site