USGS Water-Year Summary 2019
06915800 MARAIS DES CYGNES RIVER AT LA CYGNE, KS
LOCATION - Lat 38°20'43", long 94°46'20" referenced to North American Datum of 1927, Linn County, KS, Hydrologic Unit 10290102, on right bank at downstream side of bridge on Kansas Highway 152, at west edge of La Cygne, and at mile 331.9.
DRAINAGE AREA - 2,669 mi².
PERIOD OF RECORD - October 1984 to current year.
GAGE - Water-stage recorder. Datum of gage is 776.21 ft above NGVD of 1929 (levels by National Weather Service).
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of July 13, 1951, reached a stage of 36.19 ft, present datum, discharge not determined; information supplied by National Weather Service.