DescriptionHighly detailed map that shows Saugatuck, Douglas, Singapore and surroundings from the northern boundary of Saugatuck Township to Wiley Road. Map includes the future 1912 channel, land elevations and contours, street names, locations of schools, mills, docks, factories, streams, section numbers, and details of interest like the 1834 Potawatomi Corn Field. According to the legend in the lower left, the "contour interval 10 feet based above sea level. Structures based on 1873 Atlas of Allegan County [Titus]. Soundings based on 1877 and 1912 War Department Nautical Charts [NOAA]. Contours based on 1912 U.S. War Department Nautical Chart. Cartography by James T. Faasen copyright 2014." The legend also includes a lake water levels scale from 1860 to 2010 from data by Great Lakes Environmental Research Laboratory (GLERL).