LOCATION.--Lat 44° 57'15", long 116° 27'59"(Rev.)(NAD83), in NE1/4 SW1/4 sec.28, T.19 N., R.1 W., Adams County, Tamarack quad., Hydrologic Unit 17050124, Payette National Forest, 0.1 mi downstream from dam of Lost Valley Reservoir, 4 mi west of Tamarack, at mile 10.2, and 16 mi north of Council.

DRAINAGE AREA.--29.4 mi². Mean elevation, 5,460 ft.

PERIOD OF RECORD.--January 1910 to August 1914, May 1920 to September 1921, May 1924 to November 1929 (fragmentary); March 1930 to October 1969, May to September 1980, October 1980 to November 1983 (discontinued). REVISED RECORD.--WSP 833: Drainage area.

GAGE.--Water-stage recorder. Datum of gage is 4,729.6 ft above NGVD of 1929, river-profile survey. Prior to Apr. 1, 1912, nonrecording gage at present site and datum.

REMARKS.--No diversion above station; practically entire flow diverted below station during irrigation season. Flow regulated since 1910 by Lost Valley Reservoir.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 688 ft³/s May 17, 18, 1921, gage height, 4.29 ft; No flow at times when gates in dam were closed.