ISHPEMING, MI — Two iron ore mines and a manufacturing plant in Michigan are among dozens of facilities nationwide which are being exempted from stricter new air pollution rules through a series of ...

CLEVELAND, OH — U.S. steelmaker Cleveland-Cliffs plans to explore sites in Michigan and Minnesota for domestic rare-earth metals. The company, which owns several Minnesota taconite facilities and two ...

Millie Mine, located in Iron Mountain, Michigan, is home to one of the largest bat colonies in North America. Little brown bats and big brown bats, both insectivores, inhabit the mine, with the little ...

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 ...