USGS Water-Year Summary 2018
06910800 MARAIS DES CYGNES RIVER NEAR READING, KS
LOCATION - Lat 38°34'01", long 95°57'41" referenced to North American Datum of 1927, in NE 1/4 NW 1/4 sec.15, T.17 S., R.13 E., Lyon County, KS, Hydrologic Unit 10290101, on left bank at downstream side of county highway bridge, 1.9 mi downstream from confluence of One Hundred and Fortytwo Mile Creek and Elm Creek, 4.3 mi upstream from Duck Creek, 3.0 mi north of Reading, and at mile 467.0.
DRAINAGE AREA - 177 mi².
PERIOD OF RECORD - May 1969 to current year.
GAGE - Water-stage recorder. Datum of gage is 1,048.32 ft above NGVD of 1929 (U.S. Army Corps of Engineers bench mark).