| NATIVE COPPER & SILVER W/A STORY TO TELL: CLIFF MINE, KEWEENAW CO., MICHIGAN NR! | |
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Description: Mining began here in 1845, and the Cliff was the most productive copper mine in the United States from 1845 through 1854. Large-scale mining stopped in 1878, but there continued to be small scale mining via lease until 1887 when all production stopped for good.Winning Bid: USD $42.99 - 16 bids (Year Sold: 2020 ) |
Found near: Michigan, United States
Approx/Nearest City GPS Coordinates (Lat, Long): (, )
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