"Base compiled from U.S.G.S. quadrangle sheets and Georgia county highway map ..." UTM grid. Includes text and location map. "April 1978 base 4-R-36585." Available also through the Library of Congress Web site as a raster image.
United States. Soil Conservation Service
<a rel="nofollow" class="external free" href="https://www.loc.gov/item/81690347/">https://www.loc.gov/item/81690347/</a>