LOCATION.--Lat 46° 13'58", long 116° 01'21"(Rev.)(NAD83), in SW1/4 NE1/4 sec.1, T.33 N.,R.3 E., Lewis/Idaho County line, Kamiah quad., Hydrologic Unit 17060306, Nez Perce Indian Reservation, on left bank 0.25 mi downstream from highway bridge at Kamiah, 0.75 mi downstream from Lawyer Creek, 6 mi downstream from South Fork, and at mile 67.0.

DRAINAGE AREA.--4,827 mi², revised. Mean elevation, 5,010 ft.

PERIOD OF RECORD.--August 1910 to October 1965 (discontinued).

GAGE.--Water-stage recorder. Datum of gage is 1,162.52 ft above NGVD of 1929, supplementary adjustment of 1947. Prior to Oct. 2, 1934, staff or chain gages at site 300 ft downstream at same datum.

REMARKS.--Some diurnal regulation at low stages caused by powerplant on South Fork. Some small diversions from Selway River to Bitterroot River basin (1950).

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 103,000 ft³/s June 8, 1964, gage height, 19.16 ft; minimum, 179 ft³/s about Dec. 1, 1952, gage height, 1.98 ft.