USGS Water-Year Summary 2020
06894650 MISSOURI RIVER AT NAPOLEON, MO
LOCATION - Lat 39°07'59.41", long 94°03'51.21" referenced to North American Datum of 1983, in NE 1/4 SW 1/4 sec.13, T.50 N., R.29 W., Lafayette County, MO, Hydrologic Unit 10300101, on right bank of the Missouri River just downstream of the town of Napoleon at U.S. Army Corps of Engineers facility at river mile 328.6.
DRAINAGE AREA - 485,100 mi².
PERIOD OF RECORD - Mar 18, 2009 to current year. Stage only Mar 18, 2009 to Mar 31, 2015.
GAGE - Water-stage recorder. Datum of gage is 680.14 ft. above North American Vertical Datum of 1988.