Montana · Granite County
Past Producer
Three Metals & Salt Hill Tunnel
Granite County, Montana, United States
Silver
Lead
Arsenic
Antimony
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USGS source ↗
Commodities
Primary
Silver
Secondary
Lead
Tertiary
Arsenic, Antimony
Commodity type
M
Deposit
Deposit size
S
Workings
Underground
Orebody form
TABULAR
Materials
Ore minerals
Galena
Gangue
Pyrite, Quartz
Geology
Host rock
Diorite
Associated rock
Diorite · Philipsburg Batholith
Structure
Philipsburg Batholith, Philipsburg Anticline, Philipsburg Overthrust
Economic & production
Development status
Past Producer
Production years
PRE-1907
Identification
Deposit ID
10019604
MRDS ID
DC10926
Region
NA
Data score
C
Coordinates
46.32933, -113.24481
References
USGS PP 78, P. 208