LOCATION.-- Lat 44o05'44", long 94o06'33", in SE1/4SE1/4 sec. 6, T.107 N., R.27 W., Blue Earth County,
Hydrologic Unit 07020009, on left bank 0.2 mi downstream from power plant, 2 mi west of Rapidan,
3.5 mi downstream from Watonwan River, and 7.8 mi upstream from Le Sueur River.
DRAINAGE AREA.-- 2,410 mi2.
PERIOD OF RECORD.-- July 1909 to November 1910, October 1939 to September 1945, July 1949 to current year.