A map of Wrights Point and Petty Island within the Delaware River."sheet number: 1scale: 1 inch = 500 feetDate: October 4, 1911Condition: FairMap shows the Delaware River and the area along it. Triangulation, marsh, boring, and low water are all located on the map. The 6, 12, 18, 24, 30, and 36 feet contours are shown in the river along with the soundings. There is a table of triangulation and benchmarks, a typical cross section, a table of borings, a profile and alinement chart, and an index map."PDFhttps://doi.org/doi:10.7282/T3RJ4HSGPublicLocal Map Sheet No. 1 Petty Island to Wrights PointMapsUnited States--Delaware RiverNew Jersey--RivertonPennsylvaniaNew JerseyRutgers University-New Brunswick