Associated Press Minnesota nickel-mine permit revoked by Army Corps over downstream water threat The permit did not ensure compliance with water-quality requirements of the Fond du Lac Band of ...

The Corps sided with the Fond du Lac Band and the EPA, concluding that a wetlands permit for the open-pit mine may not prevent mercury pollution and other contamination from violating the Band’s ...

The U.S. Army Corps of Engineers has revoked a crucial federal permit for the proposed NewRange Copper Nickel mine in northeastern Minnesota, saying the permit did not comply with the water ...

MINNEAPOLIS (AP) — The developers of a long-delayed copper-nickel mining project in northeastern Minnesota announced Wednesday that they plan to conduct a series of studies over the next year on ...

A decision on whether to reissue a permit to mine for the company vying to open Minnesota’s first copper-nickel mine is on hold after the company behind it said it is studying potential changes ...

MINNEAPOLIS (AP) — The developers of a long-delayed copper-nickel mining project in northeastern Minnesota announced Wednesday that they plan to conduct a series of studies over the next year on ...

MINNEAPOLIS (AP) — The developers of a long-delayed copper-nickel mining project in northeastern Minnesota announced Wednesday that they plan to conduct a series of studies over the next year on ...

MINNEAPOLIS (AP) — The developers of a long-delayed copper-nickel mining project in northeastern Minnesota announced Wednesday that they plan to conduct a series of studies over the next year on ...

MINNEAPOLIS (AP) — The developers of a long-delayed copper-nickel mining project in northeastern Minnesota announced Wednesday that they plan to conduct a series of studies over the next year on ...

FILE - A former iron ore processing plant near Hoyt Lakes, Minn., that would become part of a proposed PolyMet copper-nickel mine, is pictured on Feb. 10, 2016. (AP Photo/Jim Mone, File) (Jim Mone ...