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Now showing items 141-150 of 227
Buckhannon folio, West Virginia
(Geological Survey (United States), 1896)
Morristown folio, Tennessee
(Geological Survey (United States), 1896)
Franklin folio, West Virginia-Virginia
(Geological Survey (United States), 1896)
Claysville folio, Pennsylvania
(Geological Survey (United States), 1912)
Van Horn folio, Texas
(Geological Survey (United States), 1914)
Briceville folio, Tennessee
(Geological Survey (United States), 1896)
Newell folio, South Dakota
(Geological Survey (United States), 1919)
Elk Point folio, South Dakota-Nebraska-Iowa
(Geological Survey (United States), 1908)
Oelrichs folio, South Dakota-Nebraska
(Geological Survey (United States), 1902)
Absaroka folio, Crandall and Ishawooa quadrangles, Wyoming
(Geological Survey (United States), 1899)