LOCATION.--Lat 42° 57'01", long 115° 18'14" (NAD27), in SE1/4 NE1/4 NE1/4 sec.31, T.5 S., R.10 E., Elmore County, Hydrologic Unit 17050101, Glenns Ferry quad., about 2.2 mi upstream from mouth, and at Glenns Ferry.

DRAINAGE AREA.--48.1 mi², revised.

PERIOD OF RECORD.--April 1985 to September 1988 (discontinued).

GAGE.--Water-stage recorder. Elevation of gage is 2,530 ft above NGVD of 1929, from topographic map. April 1985 to July 14, 1986, at present location at different datum. July 14, 1986 to April 6, 1987, at site 60 ft upstream at different datum.

REMARKS.--Flow is regulated by upstream reservoirs, and part of the flow is diverted to Alkali Creek basin.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 850 ft³/s Feb. 23, 1986, gage height, 10.30 ft, on basis of slope-area measurement of peak flow; minimum, 1.2 ft³/s Apr. 1, 1988, gage height, 4.18 ft.