LOCATION.-- Lat 44o03'21", long 91o38'16", in sec. 23, T.107 N., R.7 W., Winona County, Hydrologic Unit 07040003, on right bank at Winona pumping station in Winona, 9.5 mi upstream from Trempealeau River, and at mile 725.7 upstream from the Ohio River. DRAINAGE AREA.-- 59,200 mi2. PERIOD OF RECORD.-- June 1928 to current year.