"H.M. Wilson, Geographer in charge. Triangulation by U.S. Coast and Geodetic Survey. Topography by S.H. Bodfish, Frank Sutton, R.D. Cummin, E.B. Clark, J.W. Thom, J.H. Wheat, U.S. Coast and Geodetic Survey, N.Y. City Government, and the Geological Survey of New Jersey. Surveyed in 1887-88-89 and 1897 in cooperation with the states of New York and New Jersey."
Relief shown by contours and spot heights, water depth by soundings and isolines.