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A Marquette tour guide tells us about copper mining in the Upper Peninsula which dates back 7,000 years at the Porcupine Mountains and Keweenaw Peninsula.

United statesSusan martinWerner lamsaBruce ruutilaKaren bergRichard whitemanIsle royaleColgate palmoliveRed metal mineralsZenith radio corporationLions clubWestern hemisphereBig billPorcupine mountain state parkNorth americaNative americans