A map of the Delaware River from Wrights Point.
"sheet number: 2
scale: 1 inch = 833 1/3 feet
Date: October 4, 1911
Map shows the Delaware River and the area along it. Triangulation, marsh, boring, and low water areas are located on the map. The 6, 12, 18, 24, 30, and 36 feet contours are shown in the river along with soundings. There is a table of tabulation of triangulation and bench marks, a table of borings, a typical cross section, an index map, and a profile and alinement chart."
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