Digital Surficial Geologic-GIS Map of Delaware Water Gap National Recreation Area and Vicinity, New Jersey, Pennsylvania and New York (NPS, GRD, GRI, DEWA, DEWA_surficial digital map) adapted from NJGS maps by Pallis and Marzulli, Witte and Epstein, Witte, Pristas, PaGS maps by Epstein, Sevon, Berg, Schultz and Crowl, Bucek, Braun, a NYSM map by Cadwell, Connally, Dineen, Fleisher, Fuller, Sirkin, and Wiles and a USGS NHD by USGS

The Digital Surficial Geologic-GIS Map of Delaware Water Gap National Recreation Area and Vicinity, New Jersey, Pennsylvania and New York is composed of GIS data...