A backhoe opens its steel maw and gobbles up a six-ton boulder. The big yellow machine rumbles over the bed of the St. Louis River below the Fond du Lac Dam. Greg Keup, flicking the controls of ...

He discovered the farm held dolomitic limestone. He started to crush and bake the lime, selling it in nearby Fond du Lac for chinking log walls and cementing stone walls. Nast’s young sons ...

Crews this week are stockpiling 400 truckloads of boulders that later this year will be poured into the St. Louis River just below the Fond du Lac dam in hopes lake sturgeon wi... A dump truck ...