PROVISIONAL DATA SUBJECT TO REVISION

LOCATION.--Lat 43° 46'54", long 111° 12'30", in NW1/4 NE1/4 sec.12, 
T.5 N., R.44 E., Teton County, Hydrologic Unit 17040204, on right bank 
75 ft upstream from county road bridge, 3.5 mi southwest of Tetonia, 
6.5 mi northwest of Driggs, and at mile 56.3.

DRAINAGE AREA.--335 mi2, approximately.

PERIOD OF RECORD.--October 1961 to current year.

GAGE.--Datum of gage is 5,952.9 ft above NGVD of 1929.

REMARKS.--Diversions above station for irrigation of about 42,000 acres, 
of which about 1,000 acres are irrigated by withdrawals from ground water 
(1966 determination).

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 2,980 ft3/s June, 11, 1997, 
gage height, 5.14 ft; maximum gage height, 6.37 ft, Feb. 1, 1963, backwater 
from ice; minimum, 54 ft3/s Nov. 23, 1977, gage height,  0.60 ft.

Station operated in cooperation with Water District No.1.