USGS Water-Year Summary 2023
13065500 BLACKFOOT RIVER NR HENRY ID
LOCATION - Lat 43°00'05", long 111°43'45" referenced to North American Datum of 1927, in SE 1/4 NE 1/4 sec.11, T.5 S., R.40 E., Bingham County, ID, Hydrologic Unit 17040207,
DRAINAGE AREA - 568 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - August 15, 1908, to September 30, 1925. April 1, 2020 to present. Seasonal records only.
GAGE - Water-stage recorder and crest-stage gage. Elevation of gage datum is arbitrary.
EXTREMES FOR PERIOD OF RECORD - Maximum observed discharge, 1,640 ft³/s, May 14, 1909, gage height, 4.15 ft.; minimum discharge, 1.0 ft³/s, May 11-12, 1917 , gage height, 0.50 ft. site and datum then is use. Maximum discharge, 1103 ft³/s, July 1 and 2, 2021, gage height, 3.45 ft; minimum daily discharge, 31.3 ft³/s. April to October 2021 (seasonal records only).