"Map edited 1988." Relief shown by contours and spot heights. Includes location map, index to 24,000-scale maps, and conversion table. "39080-C3-CF 100." Available also through the Library of Congress Web site as a raster image.
Geological Survey (U.S.)
1988
<a rel="nofollow" class="external free" href="https://www.loc.gov/item/96680119/">https://www.loc.gov/item/96680119/</a>