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History and review of copper, iron, silver, slate and other material interests of the south shore of Lake Superior.
Published 1876Microfilm Book -
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Final cultural landscape report : Pahaquarry Copper Mine, Delaware Water Gap National Recreation Area, New Jersey /
Published 1995Government Document Book -
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Report on the geology and topography of a portion of the Lake Superior land district in the state of Michigan,
Published 1850Microfilm Book -
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