Broughton, J.G., Fisher, D.W., Isachsen, Y.W., Rickard, L.V., 1961. Geologic Map (Folio) of New York, 1961. 5 sheets: Niagara, Finger Lakes, Hudson-Mohawk, Adirondack, and Lower Hudson. 1:250,000. New York State Museum Map and Chart Series.