United States. Geological Survey. U.S.G.S. Relief shown by 10 feet contour intervals. On upper margin: Topographic sheet. Triangulation by the U.S. Coast and Geodetic Survey and C.C. Vermeule. Topography by C.C. Vermeule. Surveyed in 1885-86 in cooperation with the State of New Jersey. Verso: legend and explanatory notes, "Description of the topographic map of the United States".