Environmental groups are asking the Department of Natural Resources to give the public more time to comment on the draft dam safety permits for the planned PolyMet copper-nickel mine in northeastern Minnesota.
Minnesota regulators have opened a 30-day public comment period on draft dam safety permits for the proposed PolyMet copper-nickel mine in northeastern Minnesota.
Gov. Mark Dayton plans to meet with officials on the Iron Range just weeks after he dealt a blow to a proposed copper-nickel-precious metals mine near the Boundary Waters Canoe Area Wilderness.