MINNEAPOLIS (AP) — The developers of a long-delayed copper-nickel mining project in northeastern Minnesota announced ... Corps of Engineers revoked a wetlands destruction permit, saying it ...

SOUDAN, MINN. — It's always 51 degrees with a quality of darkness rarely experienced at the bottommost point of Minnesota's oldest, deepest, and most iron-rich mines — and after $9.3 million ...

MINNEAPOLIS (AP) — The developers of a long-delayed copper-nickel mining project in northeastern Minnesota announced Wednesday ... And the Army Corps of Engineers revoked a wetlands permit, saying it ...