Defenses of Washington, extract of military map of N.E. Virginia : showing forts and roads
Relief shown by hachures. Depths shown by soundings. Also shows woods and householders' names in rural areas. In lower left corner: Accompanying report of Brig. Gen. Richard Delafield ... dated October 30, 1865, series III. From: Atlas to accompany the official records of the Union and Confederate Armies, Washington, 1891-1895, plate 89, map 1. In lower right corner: See Atlas, Plates VII. and VIII....
United States. Government Printing Office - United States. War Department. Engineer Bureau - Delafield, Richard