LOCATION.--Lat 43°21'11.9", long 78°11'35.0" referenced to North American Datum of 1983, Orleans County, NY, Hydrologic Unit 04130001, on left bank on downstream end of abandoned bridge pier of Oak Orchard River Road bridge, 4.0 mi downstream from Waterport Reservoir Dam, 1.7 mi upstream from mouth into Lake Ontario, and 7.4 mi north of Albion.
DRAINAGE AREA.--272 mi².  
PERIOD OF RECORD.--September 2020 to current year.
GAGE.--Acoustic velocity meter and water-stage recorder. Datum of gage is 229.39 ft above NAVD of 1988 and 229.32 ft above IGLD of 1985.
REMARKS.--Flow regulated to some extent by Waterport hydroelectric reservoir 4.0 mi upstream from station and from Glenwood Lake hydroelectric reservoir 18.3 mi upstream from station. Discharge includes undetermined diversion from Erie (Barge) Canal, 14.8 mi upstream from station.
EXTREMES OUTSIDE PERIOD OF RECORD.--Flood in May 2017 reached an elevation of 248.98 ft above IGLD of 1985, from floodmarks at Marsh Creek at mouth at The Bridges (station 0422018605).

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