Minnesota's permit for Northshore mine expansion riles tribes, environmental groups

Tribal and environmental groups say the state’s plan to allow expansion of a taconite mine raises the same concerns as the prospect of copper-nickel mining in northeastern Minnesota.

Northshore Mining Company wants to enlarge its 12-mile-long taconite pit near Babbitt into an area that contains sulfur-bearing rock, the same type of rock that would yield copper, nickel and precious metals for the proposed PolyMet mine just a few miles to the south.

https://www.minnpost.com/environment/2015/11/minnesota-s-permit-northshore-mine-expansion-riles-tribes-environmental-groups