This product is an original 1883 antique map of the channel connecting Pine Lake and Round Lake published by the U.S. Chief of Engineers and measures 10.5x7.5 inches. Rare and very detailed survey map of the Nautical channel connecting Round Lake and Pine Lake. Perfect for collectors and enthusiasts of antique maps, this map is a valuable piece of North American cartographic history. Good condition, discoloration, creases as issued