You're currently viewing an old version of this dataset. To see the current version, click here.
Cuyuna Range Underground Mine Shafts
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.