https://www.mprnews.org/story/2023/06/06/us-army-corps-revokes-key-northmet-copper-nickel-mining-permit
U.S. Army Corps revokes key NorthMet copper nickel mining permit | MPR News
The U.S. Army Corps of Engineers has revoked a key permit for the proposed NorthMet copper-nickel mine in northeastern Minnesota, formerly known as the PolyMet...