Mine detail: Columbia Mine

Previously called 'Sheldon, Shafer'

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Location

Lat / long: 46.0858, -88.36194

Resource(M)

Tertiary: Iron

Production

Operation type: Underground
Development status: Past Producer
First production started: 1882

Geology

References

MAS260710031
DEP10292370
Reference{Deposit:: LAKE SUPERIOR IRON ORES, MINING DIRECTORY AND STATISTICAL RE}{Deposit:: PUBLISHED BY THE LAKE SUPERIOR IRON ORE ASSOCIATION, 1952, P}
ReporterEastern Field Operations Center (EFOC)