Shows flood control dams, reservoirs, and benefited areas. "April 1981." Includes location map. "1-12,194." Available also through the Library of Congress Web site as a raster image.
United States. Soil Conservation Service
1981
<a rel="nofollow" class="external free" href="https://www.loc.gov/item/82693291/">https://www.loc.gov/item/82693291/</a>