TY - RPRT TI - 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 AU - Michael H. Trippi AU - Robert T. Ryder AU - Catherine B. Enomoto PY - 2019 DO - 10.3133/sim3425 UR - https://pubs.usgs.gov/publication/sim3425 ID - sim3425 ER -