WPAs in Spink County, SD Mansfield Slough WPA734 acres Jesson WPA671 acres Sonderson, Bruckner, Hanson WPA245 acres Einspahr WPA159 acres Boekelheide West WPA138 acres Becker WPA123 acres Stroschein WPA115 acres Hahler-Carda WPA105 acres Boekelheide N. East WPA95 acres Bacon WPA34 acres