LOCATION.--Lat 40°41'40.6", long 95°33'45.3"
referenced to North American Datum of 1983, in SW 1/4 SW 1/4 NW 1/4
sec.21, T.68 N., R.41 W., Fremont County, IA, Hydrologic Unit
10240003, on right upstream side of bridge on County Highway L68 at
north edge of Riverton, 4.7 mi upstream from confluence with West
Nishnabotna River, and 20.4 mi upstream from mouth of Nishnabotna
DRAINAGE AREA.--1,105 mi2.
PERIOD OF RECORD.--Discharge records from April 2010 to current
GAGE.--Water-stage recorder. Datum of gage is 911.33 ft above
North American Vertical Datum of 1988.
REMARKS.--For climatological records collected at this site, see
Raingage at East Nishnabotna River at Riverton, IA (station