Montana · Jefferson County
Past Producer

Lotta Tunnel

Jefferson County, Montana, United States
GoldSilverZinc
⌖ Show on mapUSGS source ↗
Commodities
PrimaryGold, Silver
SecondaryZinc
Commodity typeM
Deposit
Deposit sizeS
WorkingsUnderground
Orebody formIRREGULAR VEINS AND PODS
Ore controlShear Zone In Quartz Monzonite
Materials
Ore mineralsGold
GanguePyrite, Quartz
Geology
Host rockQuartz Monzonite
StructureFault N 45 E, Dip 35-45 N
Economic & production
Development statusPast Producer
Identification
Deposit ID10101930
MRDS IDDB02129
RegionNA
Data scoreB
Coordinates45.99991, -112.28366
References
RUPPEL EDWARD T., 1963, GEOLOGY OF THE BASIN QUADRANGLE, JEFFERSON, LEWIS AND CLARK, AND POWELL COUNTIES, MONTANA, U.S. GEOLOGICAL SURVEY BULLETIN NO. 1151, 121 P.STOUT, 1959, MONT. BM & GEOL., BULL. 10, P 28.ROBY, R. N., ACKERMAN, W. C., FULKERSON, F. B., AND CROWLEY, F.A., 1960, MINES AND MINERAL DEPOSITS, JEFFERSON COUNTY, MONT.: MONT. BUREAU OF MINES AND GEOLOGY BULL. 16, 122 P.RUPPEL EDWARD T., 1963, U.S.G.S. BULL. NO. 1151, P. 112.