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Now showing items 11-20 of 28
Norfolk folio, Virginia-North Carolina
(Geological Survey (United States), 1902)
Aladdin folio, Wyoming-South Dakota-Montana
(Geological Survey (United States), 1905)
Ebensburg folio, Pennsylvania
(Geological Survey (United States), 1905)
Tishomingo folio, Indian Territory
(Geological Survey (United States), 1903)
Belle Fourche folio, South Dakota
(Geological Survey (United States), 1909)
Indiana folio, Pennsylvania
(Geological Survey (United States), 1904)
Joplin district folio, Missouri-Kansas
(Geological Survey (United States), 1907)
Lancaster-Mineral Point folio, Wisconsin-Iowa-Illinois
(Geological Survey (United States), 1907)
Devils Tower folio, Wyoming
(Geological Survey (United States), 1907)
Sundance folio, Wyoming-South Dakota
(Geological Survey (United States), 1905)