Prehistoric copper mines -- Early reports -- Samuel O. Knapp and the Minesota mine -- Who wrote the Knapp report? -- What discoverers saw in the nineteenth century -- Who were the prehistoric miners? ...
LANSING, MI — Michigan regulators are requesting public comment on an air pollution permit application for a proposed copper mine in the Upper Peninsula. The Michigan Department of Environment, Great ...
LAKE LINDEN, MI – This 1915 locomotive sat silently for years. Now, it’s chugging back to life. The Houghton County Historical Society has restored and recertified the Calumet & Hecla Mine #3 Steam ...
America needs copper. It's in the wiring of our homes, cars, technology, and businesses. It's in the electronics and defense systems that protect our troops. Electric vehicles, solar panels, windmills ...
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