. . . "493.0" . . "Avon, South Dakota" . . "1680000.0" . . "351.54215433131156" . . "0.0" . "351.51" . "492.8616" . . "57315" . "Avon, South Dakota#History" . "605" . . "Avon" . . "1683492.2717184" . . . "-5" . "586" . . "-6" . . . "1683492.2717184" . . . "Avon, South Dakota" . . . "1680000.0" .