Idaho · Lemhi County
Past Producer

Twilight Mine

Lemhi County, Idaho, United States
GoldThoriumLeadREESilver
⌖ Show on mapUSGS source ↗
Commodities
PrimaryGold
TertiaryThorium, Lead, REE, Silver
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Materials
Ore mineralsGalena, Monazite
GangueMagnetite, Orthoclase, Pyrite, Quartz
Geology
Host rockGneiss,Schist · Belt Supergroup
Associated rockPegmatite
Economic & production
Development statusPast Producer
Identification
Deposit ID10071675
MRDS IDW015189
Alternate namesSawlog Group
RegionNA
Data scoreB
Coordinates45.38849, -114.20063
References
Sturm, F. H., 1954, General Geology Of Some Replacement Monazite Deposits In Lemhi County, Idaho: Moscow, Idaho, Univ. Of Idaho, M.S. Thesis, 64 P.Trites, A. F., And Tooker, E. W., 1953 , Uranium And Thorium Deposits In East - Central Idaho, Southwestern Montana: USGS Bulletin 988-H, P. 170Sturm, F. H., 1954, Univ. Of Idaho, M. S. Thesis.