Shows "Prime farmland" and "Additional farmland of statewide importance."; "Base Source: USGS 1:100,000 county base map compiled in 1975"; "Interpretations derived from soil map constructed 1970 by Cartographic Division, Soil Conservation Service, USDA, of New Castle County, Delaware."; "January 1977."; Includes location map and note., 1 map :color ;61 x 33 cm, on sheet 76 x 62 cm, Scale 1:100,000, Universal transverse Mercator proj.
United States. Soil Conservation Service (n.d.). Important farmlands, New Castle County, Delaware. United States. Soil Conservation Service. http://cdm17287.contentdm.oclc.org/cdm/ref/collection/maps1/id/33677 (map)