Mine detail: Twilight Mine

Previously called 'Sawlog Group'

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Location

Lat / long:

45.38849, -114.20063

Resource(M)

Primary:	Gold
Tertiary:	Thorium, Lead, REE, Silver
Ore:	Galena, Monazite
Gangue:	Magnetite, Orthoclase, Pyrite, Quartz

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer

Geology

Host rock:	Belt Supergroup
Host type:	Gneiss,Schist
Associated type:	Pegmatite

References

MRDS	W015189
MAS	160590034
DEP	10071675
Reference	{Deposit:: 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.}{Deposit:: Trites, A. F., And Tooker, E. W., 1953 , Uranium And Thorium Deposits In East - Central Idaho, Southwestern Montana: USGS Bulletin 988-H, P. 170}{Production:: Sturm, F. H., 1954, Univ. Of Idaho, M. S. Thesis.}
Reporter	Miller, Pat J., Western Field Operations Center (WFOC)