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Cuyuna Range Underground Mine Shafts [Draft]

The Cuyuna Range Underground Mine Shafts point shapefile coverage comprises the mine shafts digitized from all found and geo-rectified maps of the Cuyuna Range underground natural iron ore mines. Shafts are vertical or inclined passages from ground surface to underground orebodies that allow access/egress of people and materials and provide for mine ventilation and dewatering.

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Last Updated May 4, 2022, 19:48 (UTC)
Created May 4, 2022, 19:47 (UTC)