Wisconsin · Iowa County
Past Producer
Optimo No.4 Mine
Iowa County, Wisconsin, United States
Lead
Zinc
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USGS source ↗
Commodities
Tertiary
Lead, Zinc
Commodity type
M
Economic & production
Development status
Past Producer
First production
1923
Identification
Deposit ID
10278022
Alternate names
Fearless
Region
NA
Data score
E
Coordinates
42.93311, -90.27731