LOCATION.--Lat 43° 57'59", long 113° 34'43"(Rev.)(NAD83), in NW1/4 SW1/4 sec.2, T.7 N., R.24 E., Custer County, Hydrologic Unit 17040218, Mackay quad., at point of diversion from Cedar Creek, immediately below the powerhouse of Mackay Light and Power Co., and 4 mi northeast of Mackay.

PERIOD OF RECORD.--May 1920 to October 1922 (discontinued).

GAGE.--Staff gage. Elevation of gage is 6,880 ft above NGVD of 1929, from topographic map.

REMARKS.--Station is above all diversions. Flow regulated by headgates directly above gage. Water usually diverted only during irrigation season for irrigation of land northeast of Mackay; winter flow is mainly leakage through the headgates.

COOPERATION.--Gage height record and some discharge measurements furnished by water commissioner for Big Lost River.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge observed, 26 ft³/s June 21-26, 1922, gage height, 1.6 ft; no flow May 11-13, 1920, May 20-22, June 6-8, 1921, June 6, 27, 1922.