Discover Pennsylvania’s mining heritage on this underground train ride through a historic coal mine deep beneath the surface.

Closed for more than a year after a mine shaft fire, the Soudan Underground Mine State Park will reopen to public mine tours starting Saturday. "Cleanup and repair of the mine shaft is now complete, ...

Mines in Michigan's Upper Peninsula, once leading mineral producers, are preserved for public tours. Visitors can book tours to explore the underground history in the Iron Mountain Iron Mine, Quincy ...