Relief shown by shading and spot heights. "*GPO: 2002--491-282/40237. Reprint 2002." Panel title. Includes text and location map. Text and col. ill. on verso. Available also through the Library of Congress Web site as a raster image.
United States. National Park Service
2002
<a rel="nofollow" class="external free" href="https://www.loc.gov/item/2002620782/">https://www.loc.gov/item/2002620782/</a>