Port Morris is a historic unincorporated community located within Roxbury Township, in Morris County, New Jersey, United States. Despite its name, Port Morris is in the hills of the Skylands Region, on the shores of Lake Musconetcong. With the rise of the railroad came the demise of canals. Despite the changeover in transportation methods, Port Morris found a new role. With the construction of the Lackawanna Cutoff, constructed by the Delaware, Lackawanna and Western Railroad between 1908 and 1911, Port Morris became a major railroad junction and the starting point of the Cutoff.