USGS Water-Year Summary 2021
05478265 East Fork Des Moines River near Algona, IA
LOCATION - Lat 43°04'56.2", long 94°13'51.1" referenced to North American Datum of 1983, in NW 1/4 NE 1/4 NE 1/4 sec.02, T.95 N., R.29 W., Kossuth County, IA, Hydrologic Unit 07100003, on left bank on downstream side of bridge on State Highway 18 in Algona, and 374.4 mi upstream from mouth of Des Moines River.
DRAINAGE AREA - 884 mi².
PERIOD OF RECORD - Stage-only records from March 2009 to September 2011 (no winter records); discharge records from October 2011 to current year.
GAGE - Water-stage recorder. Datum of gage is 1,098.74 ft above National Geodetic Vertical Datum of 1929 (levels by U.S. Army Corps of Engineers).