USGS Water-Year Summary 2019
06466010 MISSOURI RIVER AT NIOBRARA, NE
LOCATION - Lat 42°45'42", long 98°01'40" referenced to North American Datum of 1927, in NW 1/4 SW 1/4 sec.09, T.32 N., R.6 W., Knox County, NE, Hydrologic Unit 10170101, on the right bank at the north edge of Niobrara, NE, at river mile 843.
DRAINAGE AREA - 265,500 mi².
PERIOD OF RECORD - 1996 to present.
GAGE - Water-stage recorder with satellite telemetry. Datum of gage is 1,200.00 ft above National Geodetic Vertical Datum of 1929 (NGVD29).
EXTREMES FOR PERIOD OF RECORD - Maximum peak stage, 26.76 ft, June 26, 2011.