Lake Superior, Keweenaw Co., Michigan, USA

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Minong Mine 6000 lb Copper mass
	Minong Mine, Isle Royale National Park, Lake Superior, Keweenaw Co., Michigan, USA Single mass of pure copper weighing in at 6000 lbs. found on the Minong Mining company circa 1880s. From Tyler's Souvenir of the Copper Country (1903).
© J. Nemitz	Photo ID: 233891 View Count: 102

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Lake Superior, Keweenaw Co., Michigan, USA

Minong Mine 6000 lb Copper mass