USGS Water-Year Summary 2021
09046600 BLUE RIVER NEAR DILLON, CO
LOCATION - Lat 39°34'00", long 106°02'56" referenced to North American Datum of 1927, in SW 1/4 SE 1/4 sec.31, T.5 S., R.77 W., Summit County, CO, Hydrologic Unit 14010002, on left bank 0.3 mi upstream from Dillon Reservoir, and 5.0 mi south of Dillon.
DRAINAGE AREA - 123 mi².
- WDR CO-95-2: 1994. WDR-US-2011: Drainage area.
PERIOD OF RECORD - October 1957 to current year.
GAGE - Water-stage recorder with satellite telemetry and crest-stage gage. Elevation of gage is 9,020 ft above NGVD of 1929, from topographic map. Prior to Aug. 6, 1992, at site 1.4 mi upstream at different datum. Aug. 6, 1992 to Oct. 20, 1994, at site 200 ft upstream at different datum.