LOCATION.--Lat 43° 56'55", long 114° 49'59"(Rev.)(NAD83), in NW1/4 SW1/4 sec.9, T.7 N., R.14 E., Blaine County, Alturas Lake quad., Hydrologic Unit 17060201, Sawtooth National Forest, on right bank 1 mi downstream from outlet of Perkins Lake, 1.5 mi downstream from outlet of Alturas Lake, and 4 mi south of Obsidian.

DRAINAGE AREA.--35.7 mi².

PERIOD OF RECORD.--November 1940 to January 1953 (discontinued).

GAGE.--Water-stage recorder. Elevation of gage is 7,000 ft, by barometer.

REMARKS.--No diversion or regulation above station.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 633 ft³/s June 7, 1952, gage height, 5.34 ft; maximum gage height, 5.41 ft, June 9, 1948; minimum discharge recorded, 7.9 ft³/s Oct. 1, 1952; minimum gage height recorded, 1.83 ft, Apr. 3, 1945.