In faint pencil on verso: "Capt Sc ..." The remainder of this text was lost in cropping. In ink on verso: "No. 9--". Includes text: "Lines of Fortification made in the year 1778," "Genl. Morriss Qutrs. at Farguoner’s." Military topographic map. Covers an area in southern Westchester County, New York. Shows roads running through Tarrytown, Irvington, Abbotsford, Dobbs Ferry, Ardsley, Elmsford, Harts Corners and White Plains. Also show buildings and owners’ names; landforms and streams. Shows fort on Chatterton Hill and "Lines of Fortification made in the Year 1778." Pen-and-ink, pencil on laid paper. Shows relief by hachures. Title proper from recto is the work of a later editor--Simeon DeWitt or his assign--subsequent to 1820. Index title, statement of responsibility, date, series title and series numbering by Erskine, but on separate index sheet filed at head of series. Scull’s statement of responsibility from verso of this map. Torn, foxed, frayed, creased and abraded. Mounted on cloth, bound and cropped, disbound and silked by subsequent owners. Cleaned after removal of backings 1999; some fill remains. Sheathed in mylar. Watermarks: lily, monogram. References: Heusser, Albert H. George Washington’s Map Maker, p. 249-256.