United States. Soil Conservation ServiceShows "prime farmland", "unique farmland, other than prime", "additional farmland of statewide importance" and "other land."; "Base Source: USGS 1:100,000 county base dated 1975 ..."; "Interpretations derived from soil map constructed in 1960 by Cartographic Division, Soil Conservation Service, USDA, of Erie County, Pennsylvania."; "March 1978."; Includes location map, inset, and note.1 map on 2 sheets :color ;91 x 151 cm on sheets 101 x 121 cmScale 1:50,000JPEGengUnited States. Soil Conservation ServicePublicImportant farmlands, Erie County, PennsylvaniaMapsPennsylvania--Erie CountyPennsylvania1978Pennsylvania State University