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Mass Copper |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Water, Rivers, Persons |
Mass of native copper on the Ontonagon River [Artistic rendering of a group of canoes moving down a river (Michigan Tech Centennial Page xvi)] Scanned: December 13, 2007 |
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Copper Mines - St. Clair |
Metal Trade, Copper Industry and Trade, Copper Mines and Mining, Water, Rivers, Woody Plants, Trees |
St. Clair Mine [View of the mine. Image appears to have been snapped from the river.] Scanned: September 27, 2007 |