-
1by Kerr, J. A. (John Alexander), 1886-1930Subjects: “...Soils South Dakota Union County Maps....”
Published 1924
Book -
2by Watkins, W. I. (William Isaac), 1888-1973Subjects: “...Soils South Dakota Grant County Maps....”
Published 1927
Interactive Web application (free) for electronic access to soil survey information available at the USDA Natural Resources Conservation Service Web site. Address as of 4/2/2013:
Government Document Book