LOCATION.--Lat 42° 35'38", long 114° 52'52"(Rev.)(NAD83), in SE1/4 SW1/4 sec.36, T.9 S., R.13 E., Twin Falls County, Balanced Rock quad., Hydrologic Unit 17040213, 5 mi northeast of Balanced Rock and Castleford crossing, 6 mi west of Buhl, and 9 mi upstream from the mouth.

DRAINAGE AREA.--2,155 mi², revised.

PERIOD OF RECORD.--July 1955 to August 1958, December 1960 to September 1961 (discontinued).

REVISED RECORDS.--WSP 1567: 1956.

GAGE.--Water-stage recorder. Elevation of gage is 3,230 ft above NGVD of 1929, by barometer.

REMARKS.--Only leakage passes Salmon River Canal Co. dam, where flow is diverted for irrigation. Flow at station is derived from seepage past dam, underground flow from adjacent irrigated land, and surface waste over rim of canyon. Diversion by pumping below Salmon River Canal Co. dam and above station for irrigation of 2,400 acres in project of Magic Water Company, Inc.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 298 ft³/s Feb. 15, 1957, gage height, 2.89 ft, from rating curve extended above 150 ft³/s, on basis of conveyance study and logarithmic plotting; minimum discharge, 50 ft³/s May 25, 1961, gage height, 1.40 ft.