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Mining / Economic geology / Ore / Copper extraction techniques / Greenside Mine / Copper mining in the United States


The Story of Ore Hill Zinc-Lead Mine, Warren, Grafton County, NH By Anna Wilken December 2014 Through the 80 years the mine has been worked it has had different names: The Copper Mine, The Warren Silver-Lead Mine, The Wa
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Document Date: 2015-12-15 12:28:47

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