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  1. 1
    Geology and water resources of the northern portion of the Black Hills and adjoining regions in South Dakota and Wyoming /
    “...United States Black Hills. fast...”
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    Government Document eBook
  2. 2
    Nonopaque heavy minerals in sandstone of Jurassic and Cretaceous age in the Black Hills, Wyoming and South Dakota /
    “...United States Black Hills. fast (OCoLC)fst01310332...”
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    Government Document
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