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| Lake Superior in Michigans Iron country 1800's
The existence of valuable copper mines along Lake Superior, had long
been known. The narratives of the Jesuit Fathers during the seventeenth
century make frequent mention of them, and they have also been noticed by
several travelers in the last century. The copper of Lake Superior occurs
in the form of metallic copper, which can be hammered, sharpened and
hardened, and hundreds of years before our period, extensive mining
developments had been made at many points along the range by rude races
whose metallurgical knowledge did not extend to the smelting of iron from
its ores.
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