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Now showing items 71-80 of 109
Oelrichs folio, South Dakota-Nebraska
(Geological Survey (United States), 1902)
Camp Clarke folio, Nebraska
(Geological Survey (United States), 1903)
Atoka folio, Indian Territory
(Geological Survey (United States), 1902)
Walsenburg folio, Colorado
(Geological Survey (United States), 1900)
Trenton folio, New Jersey-Pennsylvania
(Geological Survey (United States), 1909)
Devils Tower folio, Wyoming
(Geological Survey (United States), 1907)
Huntington folio, West Virginia-Ohio
(Geological Survey (United States), 1900)
Sundance folio, Wyoming-South Dakota
(Geological Survey (United States), 1905)
Colfax folio, California
(Geological Survey (United States), 1900)
Accident-Grantsville folio, Maryland-Pennsylvania-West Virginia
(Geological Survey (United States), 1908)