LOCATION.--Lat 44° 57'38", long 116° 51'12"(Rev.)(NAD83), in NW1/4 sec.16, T.7 S., R.48 E., Baker County, Oregon, Oxbow quad., Hydrologic Unit 17050201, on left bank just upstream from intakes to Oxbow powerplant, 0.8 mi southeast of Oxbow, about 2.5 mi upstream from Indian Creek, and at mile 273.5.

DRAINAGE AREA.--72,800 mi², approximately.

PERIOD OF RECORD.--May 1923 to March 1958, October 1967 to September 1971 (discontinued).

GAGE.--Flow meter with accumulating integrator on each of four penstocks, dial gage on each of three spillway gates, and water-stage recorder on Oxbow Reservoir. Prior to Dec. 20, 1923, nonrecording gage at site 0.6 mi upstream at different datum. Dec. 20, 1923 to Mar. 8, 1958, water-stage recorder at site 0.6 mi upstream at different datum.

REMARKS.--Flow regulated by many reservoirs above station, the most effective of which is Brownlee Reservoir, 11.5 mi upstream (sta 13289700). Oxbow Dam started operation in 1961, powerplant operating since begining of records at this site. Diversions above station for irrigation of about 3,800,000 acres, of which about 742,000 acres are by withdrawals from ground water (1966 determination).

COOPERATION.--Integrator charts, log of gate and valve operation for spillway, and reservoir elevations furnished by Idaho Power Co.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 89,700 ft³/s Apr. 28, 1952, gage height, 23.10 ft; maximum gage height, about 29 ft (ice jam), from floodmark, sometime during period Jan. 17-27, 1949; minimum daily discharge, 3,250 ft³/s May 26, 1968.