Montana · Lewis and Clark County
Occurrence
Montreal Claim
Lewis and Clark County, Montana, United States
Copper
Silver
Arsenic
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USGS source ↗
Commodities
Primary
Copper
Secondary
Silver
Tertiary
Arsenic
Commodity type
M
Deposit
Deposit size
N
Materials
Ore minerals
Chalcopyrite, Tenorite
Gangue
Limonite, Quartz
Geology
Host rock
Slate · Belt Group
Alteration
Oxidation
Economic & production
Development status
Occurrence
Identification
Deposit ID
10012450
MRDS ID
D008089
Alternate names
Hudson Group
Region
NA
Data score
C
Coordinates
46.99657, -112.10478
References
USGS BULL 842, P. 113