Title from panel. "*GPO:2004--304-337/00135 Reprint 2004." Includes location map. Text, 4 plant associations diagram, "Ecotone" map and illustrations (mostly color). 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/2014590122/">https://www.loc.gov/item/2014590122/</a>