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LOCATION.--Lat 43° 58'01", long 111° 40'21", in NW1/4 sec.6,
T.7 N., R.41 E., Fremont County, Hydrologic Unit 17040203,
on right bank 0.5 mi upstream from bridge on main street of St. Anthony,
6.4 mi downstream from Falls River, and at mile 32.4.
DRAINAGE AREA.--1,770 mi2, approximately. Mean elevation, 6,670 ft.
PERIOD OF RECORD.--March 1919 to current year (irrigation seasons only
prior to 1962).
REVISED RECORDS.--WSP 1217: Drainage area. WSP 1317: 1923(M).
GAGE.--Datum of gage is 4,950.7 ft above NGVD of 1929. March 1919 to
May 7, 1922, nonrecording gages, and May 8, 1922, to Aug. 14, 1931,
water-stage recorder, at site 150 ft downstream at datum 0.08 ft lower.
REMARKS.--Diversions above station for irrigation of about 21,000 acres
below and about 58,000 acres above station of which about 1,100 acres are
irrigated by withdrawals from ground water (1966 determination). Flow
regulated by power plant about 17 mi above station, and by Henrys Lake
(see sta 13039000), Island Park Reservoir, and Grassy Lake.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge recorded, 13,200 ft3/s
May 16, 1984, gage height, 8.62 ft; minimum recorded, 21 ft3/s July 9, 1973,
gage height, 1.91 ft.
Station operated in cooperation with Water District No.1.
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