Relief shown by hachures. Depths shown by contours and soundings. General map. Does not show military operations. LC Civil War maps (2nd ed.) 474, S176 Available also through the Library of Congress Web site as a raster image. Includes list of authorities. AACR2
Title, date, and scale from Stephenson's Civil War maps, 1989. Pen-and-ink and pencil mounted on cloth. In pencil in top right margin: Copy of Map No. 4, U.S.C. & G. survey report, 1882. LC Civil War maps (2nd ed.), H213 In pencil on verso: 183. Available also through the Library of Congress web site as raster image.