USGS Water-Year Summary 2021
07346080 Big Cypress Creek above State Highway 43 near Karnack, TX
LOCATION - Lat 32°44'19", long 94°13'57" referenced to North American Datum of 1983, Marion County, TX, Hydrologic Unit 11140306, on left bank near boat ramp 5.7 miles upstream of State Highway 43 and 6.1 miles northwest of Karnack.
DRAINAGE AREA - 2,074 mi².
PERIOD OF RECORD - May 2006 to current year.
GAGE - Water-stage and water-velocity recorder. Datum of gage is 163.27 ft above NAVD of 1988. (U.S Army Corps of Engineers benchmark). Satellite telemeter at station.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 33,200 ft³s, Mar. 13, 2016; maximum gage height, 19.53 ft, Mar. 13, 2016.