Date 1781 inferred by cataloger. Military topographic map. Covers Prince Georges County in Maryland. Shows roads running through Bowie and Bladensburg. Also shows buildings, landforms and streams. Pen-and-ink, pencil on laid paper. Shows relief by hachures. Soiled, 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. Title proper from recto is the work of a later editor--Simeon DeWitt or his assign--subsequent to 1820. Title from verso is contemporaneous with map and may be cited as such. Index title, statement of responsibility, series title and series numbering also contemporaneous, but on separate index sheet filed at head of series. Watermark: "J WHATMAN" accompanied by crest (no pendent initials).