USGS Water-Year Summary 2021
05488110 Des Moines River near Pella, IA
LOCATION - Lat 41°21'38", long 92°58'23" referenced to North American Datum of 1927, in SW 1/4 SW 1/4 SE 1/4 sec.19, T.76 N., R.18 W., Marion County, IA, Hydrologic Unit 07100009, on right bank 0.4 mi downstream from outlet of Red Rock Reservoir, 2.0 mi southwest of Pella, 2.6 mi upstream from Lake Creek, and 138.7 mi upstream from mouth.
DRAINAGE AREA - 12,330 mi².
PERIOD OF RECORD - Discharge records from October 1992 to current year.
GAGE - Water-stage recorder. Datum of gage is 600.00 ft above National Geodetic Vertical Datum of 1929.