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  1. Report on the geology and resources of the Black Hills of Dakota : with atlas /
    By: Newton, Henry, - Gray, Asa, - Jenney, Walter P. - Geographical and Geological Survey of the Rocky Mountain Region (U.S.)
    Publication info: Washington :Govt. Print. Off.,1880.
    Contributed by: Mertz Library, The New York Botanical Garden
    BHL Collections: New York Botanical Garden
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