USGS Water-Year Summary 2021
13055340 SOUTH FORK TETON RIVER AT REXBURG, ID
LOCATION - Lat 43°50'06", long 111°46'40" referenced to North American Datum of 1983, in SW 1/4 SW 1/4 NW 1/4 sec.20, T.6 N., R.40 E., Madison County, ID, Hydrologic Unit 17040204, Rexburg quad., on left bank at upstream side of bridge on U.S. Highway 20, 0.6 mi north of Rexburg, and at mile 19.1.
DRAINAGE AREA - 1,070 mi².
PERIOD OF RECORD - November 1981 to current year. Prior to September 1987, fragmentary records only.
GAGE - Water-stage recorder and crest-stage gage. Elevation of gage datum is arbitrary. Prior to Sept. 9, 1987, non-recording gage at same site and datum. October 1988 to present at datum 3.00 ft higher.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge observed, 3,410 ft³/s May 16, 1984, gage height, 7.27 ft, datum then in use, and June 11, 1997, gage height, 10.68 ft, present datum; no flow at times many years.