USGS Water-Year Summary 2020
06808820 West Nishnabotna River near Riverton, IA
LOCATION - Lat 40°41'13.7", long 95°36'00.8" referenced to North American Datum of 1927, in SE 1/4 SE 1/4 SE 1/4 sec.24, T.68 N., R.42 W., Fremont County, IA, Hydrologic Unit 10240002, on left bank 15 ft upstream from bridge on County Highway J46, 1.3 mi west of Riverton, 2.7 mi upstream from confluence with East Nishnabotna River, and 18.4 mi upstream from mouth of Nishnabotna River.
DRAINAGE AREA - 1,647 mi².
PERIOD OF RECORD - Discharge records from April 2010 to June 2016, October 2016 to October 2017.
GAGE - Water-stage recorder. Datum of gage is 900.00 ft above North American Vertical Datum of 1988.