National Geologic Map Database
General Information
- Title: 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(s): Trippi, M.H., Ryder, R.T., and Enomoto, C.B.
- Publishing Organization: U.S. Geological Survey
- Series and Number: Scientific Investigations Map SIM-3425
- Publication Date: 2019
- Map Scale: 1:189,000
- Cross Section: Yes
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