USGS Water-Year Summary 2019
07144910 SOUTH FORK NINNESCAH RIVER NEAR PRATT, KS
LOCATION - Lat 37°38'16", long 98°43'14" referenced to North American Datum of 1927, in NW 1/4 NW 1/4 SW 1/4 sec.02, T.28 S., R.13 W., Pratt County, KS, Hydrologic Unit 11030015, on left bank at downstream side of county highway bridge, 500 ft southwest of sewage disposal facility at Pratt, 3.3 mi downstream from major left bank tributary, and at mile 135.2.
DRAINAGE AREA - 117 mi², approximately.
PERIOD OF RECORD - October 1980 to current year.
GAGE - Water-stage recorder. Datum of gage is 1,820.83 ft above NGVD of 1929.