USGS Water-Year Summary 2021
06863420 BIG C NR ELLIS, KS
LOCATION - Lat 38°55'24", long 99°39'03" referenced to North American Datum of 1983, in SW 1/4 SW 1/4 NW 1/4 sec.15, T.13 S., R.21 W., Trego County, KS, Hydrologic Unit 10260007, on right bank near downstream side of county bridge, 4 mi upstream from the city of Ellis, and at mile 83.1.
DRAINAGE AREA - 338 mi².
- 10/10/2019 - 11/18/2020
PERIOD OF RECORD - April 2012 to current year.
GAGE - Water-stage recorder. Datum of gage is 2157.674 ft. above NAVD88. Prior to July 2021 datum was 2,120.00 ft above NGVD of 1929.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge 3,610 cfs on May 30, 2018 at a stage of 11.41 ft. This is also the maximum stage for the period of record.