31. Geologic cross section A-A' through the Appalachian Basin from the southern margin of the Ontario Lowlands Province, Genesee County, western New York, to the Valley and Ridge Province, Lycoming County, north-central Pennsylvania Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2019 Resource Type: Map Access & Availability: Loading
32. Geologic cross section A-A' through the Appalachian Basin from the southern margin of the Ontario Lowlands Province, Genesee County, western New York, to the Valley and Ridge Province, Lycoming County, north-central Pennsylvania Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: Reston, Virginia : U.S. Department of the Interior, U.S. Geological Survey, 2019 Resource Type: Map Access & Availability: Loading
33. Geologic cross section C-C' through the Appalachian basin from Erie County, north-central Ohio, to the Valley and Ridge Province, Bedford County, south-central Pennsylvania Author/Creator: Ryder, Robert T. Publication/Creation: Denver, Colo. : For sale by U.S. Geological Survey, Information Services Resource Type: Map Access & Availability: Loading
34. Geologic cross section C-C' through the Appalachian basin from Erie County, north-central Ohio, to the Valley and Ridge Province, Bedford County, south-central Pennsylvania Author/Creator: Ryder, Robert T. Publication/Creation: [Reston, Va.] : U.S. Dept. of the Interior, U.S. Geological Survey, 2012 Resource Type: Map Access & Availability: Loading
35. Geologic cross section D-D' through the Appalachian Basin from the Findlay Arch, Sandusky County, Ohio, to the Valley and Ridge Province, Hardy County, West Virginia Publication/Creation: Reston, Va. : U.S. Geological Survey ; Denver, CO : Information Services [distributor], 2009 Resource Type: Map Access & Availability: Loading
36. Geologic cross section D-D' through the Appalachian Basin from the Findlay Arch, Sandusky County, Ohio, to the Valley and Ridge Province, Hardy County, West Virginia Author/Creator: Ryder, Robert T. Publication/Creation: [Reston, Va.?] : U.S. Dept. of the Interior, U.S. Geological Survey, 2008 Resource Type: Map Access & Availability: Loading
37. Geologic cross section E-E' through the Appalachian Basin from the Findlay Arch, Wood County, Ohio, to the Valley and Ridge Province, Pendleton County, West Virginia Publication/Creation: Denver, CO : Information Services [distributor]. Resource Type: Map Access & Availability: Loading
38. Geologic cross section E-E' through the Appalachian Basin from the Findlay Arch, Wood County, Ohio, to the Valley and Ridge Province, Pendleton County, West Virginia Publication/Creation: [Reston, Va.?] : U.S. Dept. of the interior, U.S. Geological Survey, 2008 Resource Type: Map Access & Availability: Loading
39. Geologic cross section I-I' through the Appalachian Basin from the eastern margin of the Illinois Basin, Jefferson County, Kentucky, to the Valley and Ridge Province, Scott County, Virginia Author/Creator: Geological Survey (U.S.), issuing body Publication/Creation: Reston, Va. : U.S. Geological Survey, 2015 Resource Type: Map Access & Availability: Loading
40. Geologic cross section I-I' through the Appalachian basin from the eastern margin of the Illinois Basin, Jefferson County, Kentucky, to the Valley and Ridge Province, Scott County, Virginia Author/Creator: Geological Survey (U.S.), cartographer Publication/Creation: [Reston, Va.] : U.S. Department of the Interior, U.S. Geological Survey, 2015 Resource Type: Map Access & Availability: Loading