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 potential ways to ...

The Trump administration has put the NorthMet mine, a proposed massive open pit copper-nickel mine in northern Minnesota, on a list of federally important mineral projects intended for speedier ...

The head of a Chilean mining company that wants to open a copper-nickel mine on the edge of the Boundary Waters Canoe Area Wilderness says a new import tax on copper could help the project.