USGS Water-Year Summary 2024
05245100 LONG PRAIRIE RIVER AT LONG PRAIRIE, MN
LOCATION - Lat 45°58'30", long 94°51'56" referenced to North American Datum of 1927, in NE 1/4 NW 1/4 sec.20, T.129 N., R.33 W., Todd County, MN, Hydrologic Unit 07010108, on right bank 90 ft upstream from bridge on First Avenue at Long Prairie and 400 ft downstream from Venewitz Creek.
DRAINAGE AREA - 434 mi².
SURFACE-WATER RECORDS
PERIOD OF RECORD - October 1971 to current year.
GAGE - Water-stage recorder. Datum of gage is 1,281.74 ft above sea level (NGVD of 1929).
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 3,270 ft³/s, gage-height 9.37 ft., July 22, 1972; maximum daily-mean discharge, 2,900 ft³/s, July 22, 1972; minimum discharge, 0.84 ft³/s, Jan 12-18, 1977 (estimated daily-mean discharge (backwater from ice).