USGS Water-Year Summary 2021
09152500 GUNNISON RIVER NEAR GRAND JUNCTION, CO
LOCATION - Lat 38°59'00", long 108°27'00" referenced to North American Datum of 1927, in NE 1/4 SW 1/4 sec.14, T.2 S., R.1 E., Mesa County, CO, Hydrologic Unit 14020005, on right bank 180 ft upstream from bridge on State Highway 141, 0.4 mi downstream from Whitewater Creek, 0.5 mi south of Whitewater, and 8 mi southeast of Grand Junction.
DRAINAGE AREA - 7,923 mi².
- WDR-US-2011: Drainage area.
PERIOD OF RECORD - October 1894 to December 1895 (gage heights only), October 1896 to September 1899, October 1901 to October 1906 (published as "at Whitewater"), October 1916 to current year. Monthly discharge only for some periods, published in WSP 1313.
GAGE - Water-stage recorder with satellite telemetry and crest-stage gages. Datum of gage is 4,628.12 ft above NGVD of 1929. See WSP 1733 or 1924 for history of changes prior to October 1959.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 35,700 ft³/s, May 23, 1920, from rating curve extended above 22,000 ft³/s, gage height, 14.95 ft, site and datum then in use.
PERIOD OF RECORD - April 2019 to current year (seasonal records only).
INSTRUMENTATION - Tipping-bucket rain gage with satellite telemetry. Datum of gage is 4,628.12 ft above NGVD of 1929.
EXTREMES FOR PERIOD OF RECORD - (seasonal only) Maximum daily precipitation, 0.39 inches, April 29, 2019.