LOCATION.--Lat 47° 51'26", long 116° 51'54" (NAD27), in NW1/4 sec.17, T.52 N., R.4 W., Kootenai County, Hayden quad., Hydrologic Unit 17010305, on left bank at outlet gate structure, 100 yards upstream from bridge across Rathdrum Creek, and 3 mi northeast of Rathdrum.

DRAINAGE AREA.--41.2 mi².

PERIOD OF RECORD.--September 1958 to September 1968 (discontinued).

GAGE.--Staff gage read once daily. Datum of gage is 2,301.99 ft above NGVD of 1929, supplementary adjustment of 1947, levels by US Bureau of Reclamation. Datum designated as US Bureau of Reclamation datum in publications prior to 1967 is 3.75 ft higher.

REMARKS.--Stage controlled by outlet gate. Water used for irrigation on Rathdrum Prairie. A considerable part of total inflow leaves the lake by infiltration to ground water of Rathdrum Prairie.

EXTREMES FOR PERIOD OF RECORD.--Maximum gage height observed, 11.57 ft Apr. 8, 1963; minimum observed, 2.46 ft Sept. 15, 1963.