Red Mountain Mining (ASX:RMX) has spotted stibnite, a key ore mineral of antimony, at Oaky Creek North and Oaky Creek South — a major discovery that confirms multiple veins at the explorer’s ...

U.S. Steel's 1901 founding transformed the Iron Range, and the iconic Pittsburgh-based company still employs 1,800 people at its iron ore mines and pellet plants in Keewatin and Mountain Iron.