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The Copper Country in Civil War Days
Early History of the District
Discovery of the Calumet Conglomerate Lode
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Ahmeek Alexander Agassiz Allouez amygdaloid average Boston Calumet and Hecla Calumet conglomerate Calumet Mining capacity cents per pound Cliff concentrating consolidation contract Copper Company Copper Country cost deposits depth directors discovery district dividends drifts drilling early employees engineer equipment exploration Federation of Miners feet five flotation glomerate Hecla Mining Company hoisting Houghton County Hulbert hundred Huron increased industry interest Kearsarge lode Keweenaw Keweenaw County Keweenaw Peninsula labor Lake Linden Lake Superior land later Laurium leaching machine machinery metal Michigan miles native copper opened operation organized original Osceola pany period Pewabic Portage Lake practice price of copper production profit purchase Quincy railroad Reclamation Plant recovery Red Jacket shaft rock sand shares Shaw smelter smelting stamp mill steel stockholders stoping sunk surface TABLE tailings Tamarack territory tion tons Torch Lake underground units values vein Western Federation Wolverine Wolverine Tube