Digital Geomorphological Map of the William Floyd Estate, Fire Island National Seashore, New York (NPS, GRD, GRI, FIIS, WIFE digital map)
Citation: Psuty, N.P., Schmelz, W.J. and Spahn, A. (2016). Digital Geomorphological Map of the William Floyd Estate, Fire Island National Seashore, New York (NPS, GRD, GRI, FIIS, WIFE digital map). National Park Service Geologic Resources Inventory Program.
Available at: NPS record