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Mine detail: Stephenson Mine
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North America
United States
Michigan
Marquette
Previously called ''
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Location
Lat / long:
46.2778, -87.46891
Resource(M)
Tertiary:
Iron
Discovery year:
1904
Production
Operation type:
Underground
Development status:
Past Producer
First production started:
1907
Geology
References
MAS
261030102
DEP
10122553
Reference
{Deposit:: LAKE SUPERIOR IRON ORES, MINING DIRECTORY AND STATISTICAL RE}{Deposit:: PUBLISHED BY THE LAKE SUPERIOR IRON ORE ASSOCIATION, 1952, P}
Reporter
Eastern Field Operations Center (EFOC)