The Lotta Tunnel is a gold and silver mine located in Jefferson county, Montana.
About the MRDS Data:
All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.
Primary Mineral: Gold, Silver
Lat, Long: 46.00001, -112.28278
Map: View on Google Maps
MRDS mine locations are often very general, and in some cases are incorrect. Some mine remains have been covered or removed by modern industrial activity or by development of things like housing. The satellite view offers a quick glimpse as to whether the MRDS location corresponds to visible mine remains.
Lotta Tunnel MRDS details
Primary: Lotta Tunnel
District: Basin District
Owner Name: Jefferson Developement Co.
Home Office: C/O A.B., Moody, Everett, Wash.
Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Deposit Size: S
General Physiographic Area: Rocky Mountain System
Physiographic Province: Northern Rocky Mountains
Mineral Deposit Model
Form: IRREGULAR VEINS AND PODS
Description: Fault N 45 E, Dip 35-45 N
Name: Quartz Monzonite
Age Type: Host Rock
Age Young: Late Cretaceous
Analytical Data: GOLD ORE ASSAYED AS HIGH AS 17 OZ/TON
Comment (Production): $75,000 FREE MILLING GOLD ORE 1890-1911. 1,000 TONS OF ORE WITH LESS THAN .5 OZ/TON AU IN 1953-1954.
Comment (Location): PREVIOUS QUAD DESIGNATION = DILLON 1:250000
Reference (Deposit): 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.
Reference (Deposit): STOUT, 1959, MONT. BM & GEOL., BULL. 10, P 28.
Reference (Deposit): 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.
Reference (Production): RUPPEL EDWARD T., 1963, U.S.G.S. BULL. NO. 1151, P. 112.
Colorized Mining Photos
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