Z06806200 USGS H06806200 4050230954830001919071SW1024000125.70 935 N06806200 Township Ditch Tributary near Thurman, IA Y06806200 306806200 19920916 82.30 1 306806200 19930723 87.23 306806200 19950605 83.44 1 306806200 19960625 82.62 1