USGS Water-Year Summary 2021
09217900 BLACKS FORK NEAR ROBERTSON, WY
LOCATION - Lat 40°57'32.5", long 110°34'47.0" referenced to North American Datum of 1983, in SW 1/4 SW 1/4 SW 1/4 sec.27, T.3 N., R.12 E., Summit County, UT, Hydrologic Unit 14040107, on left bank 1 mi downstream from East Fork, 2.7 mi south of Utah-Wyoming State line, and 18 mi south of Robertson.
DRAINAGE AREA - 130 mi².
- WDR WY-80-2: Elevation.
PERIOD OF RECORD - October 1937 to July 1939 (published as "at Blacks Fork Ranger Station"), July 1966 to September 1986, October 1992 to current year.
GAGE - Water-stage recorder. Elevation of gage is 8,840 ft above NGVD of 1929, from topographic map. October 1937 to July 1939, at site 970 ft downstream from station at different datum, July 1966 to September 1986 and October 1992 to September 1993 at site 0.2 mi downstream from station at datum 6.5 ft lower. U.S. Geological Survey data collection platform with satellite telemetry at station.