A topographical map of the valley of the Passaic with the country eastward to Newark and southward to the Raritan River. George H. Cook, State Geologist, John C. Smock, assistant geologist, C.C.Vermeule, topographer. 1885. Geological Survey of New Jersey. Atlas sheet no. 6, central red sandstone. Julius Bien & Co., Lith. (1888)