Relief shown by shading. Includes text, index to points of interest, and 3 insets of battle positions. Text, location map, and ill. on verso. Available also through the Library of Congress Web site as a raster image.
United States. National Park Service
1998
<a rel="nofollow" class="external free" href="https://www.loc.gov/item/99466178/">https://www.loc.gov/item/99466178/</a>