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LOCATION.--Lat 43° 54'50", long 111° 34'31" (NAD27), in SW1/4 sec.24, T.7 N., R.42 E., Madison County, ID, Newdale quad., Hydrologic Unit 17040204, 2.9 mi below Teton Dam, and 2.2 mi northeast of Newdale.
DRAINAGE AREA.--851 mi2.
PERIOD OF RECORD.--October 1974 to October 1977 (discontinued).
GAGE.--Water-stage recorder. Elevation of gage is 4,986.75 ft above NGVD of 1929. Oct. 22, 1974 to Apr. 10, 1975, nonrecording gage at site 2.9 mi upstream and Apr. 11, 1975 to June 5, 1976, water-stage recorder at site 2.7 mi upstream at different datum.
REMARKS.--October 1975 to June 5, 1976, flow regulated by Teton Reservoir. Diversions from tributaries above station for irrigation in Wyoming and Idaho. Failure of Teton Dam on June 5, 1976 inundated 185 mi2.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 2,300,000 ft3/s June 5, 1976,
on basis of slope-area measurement made after failure of Teton Dam, gage height,
82 ft, from floodmark; minimum discharge, 59 ft3/s Oct. 4, 1976, gage height,
2.73 ft.