Montana · Lewis and Clark County
Past Producer
Shannon Mine
Lewis and Clark County, Montana, United States
Gold
Silver
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USGS source ↗
Commodities
Primary
Gold, Silver
Commodity type
M
Deposit
Deposit size
S
Workings
Underground
Materials
Ore minerals
Gold
Geology
Host rock
Limestone · Helena Formation
Structure
Boulder Batholith, Marysville Stock
Economic & production
Development status
Past Producer
Identification
Deposit ID
10013919
MRDS ID
D010479
Region
NA
Data score
C
Coordinates
46.73323, -112.33589
References
USGS-USBM MINERAL YEARBOOKS 1915-1918, 1920-1923, 1933, 1937-1941.MBMG MEM 20, P. 48-9.USGS PP 57, PLATE 1.USGS-USBM MINERAL YEAR BOOKS