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El Paso folio, Texas
(Geological Survey (United States), 1909)
Indiana folio, Pennsylvania
(Geological Survey (United States), 1904)
Van Horn folio, Texas
(Geological Survey (United States), 1914)
Somerset-Windber folio, Pennsylvania
(Geological Survey (United States), 1934)
Castle Rock folio, Colorado
(Geological Survey (United States), 1915)