USGS Water-Year Summary 2023
09439000 GILA RIVER at DUNCAN, AZ
LOCATION - Lat 32°43'28", long 109°05'57" referenced to North American Datum of 1983, in NW 1/4 SW 1/4 NW 1/4 sec.20, T.8 S., R.32 E., Greenlee County, AZ, Hydrologic Unit 15040002,
DRAINAGE AREA - 3,589 mi².
PERIOD OF RECORD - Nov. 2002 to current year.
GAGE - Water-stage recorder. Datum of gage is 3,630.75 ft above NAVD of 1988. Prior to Aug. 25, 2022, the elevation of gage was reported as 3640 ft above sea level, from topographic map.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 38,900 ft³/s, Feb. 13, 2005, gage height, 23.28 ft; minimum daily discharge, no flow for many days.