Relief shown by shading. Title from panel. "*GPO: 2010--357-940/80563. Reprint 2010." Includes location map. Text, 4 plant associations diagram, "Ecotone" map, and col. ill. on verso. Available also through the Library of Congress Web site as a raster image.
United States. National Park Service
<a rel="nofollow" class="external free" href="https://www.loc.gov/item/2011590240/">https://www.loc.gov/item/2011590240/</a>