1. 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 Format: Map Access & Availability: Loading
2. 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 Format: Map Access & Availability: Loading
3. Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian Basin from Richland County, Ohio to Rockingham County, Virginia Author/Creator: Geological Survey (U.S.) Publication/Creation: Denver, CO : For sale by Map Distribution Format: Map Access & Availability: Loading