Shows soil and water conservation districts, congressional districts, SCS field offices, and SCS state office. Indexed for soil and water conservation districts. "1-10 304." 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/81693329/">https://www.loc.gov/item/81693329/</a>