LOCATION.--Lat 43°06'00.5", long 76°29'53.4" referenced to North American Datum of 1983, Onondaga County, NY, Hydrologic Unit 04140201, on right bank at downstream side of bridge on River Road, 1.0 mi upstream from Cross Lake, and 2.7 mi northwest of Jordan.
DRAINAGE AREA.--3,040 mi².  
PERIOD OF RECORD.--Occasional miscellaneous discharge measurements, water years 1932, 1971. August 2018 to current year (gage heights only).
REVISIONS HISTORY.--Datum of gage was revised on Feb. 26, 2019.
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 364.60 ft above NAVD of 1988 (New York State Department of Environmental Conservation bench mark). Prior to May 5, 1971, nonrecording gage at same site at different datum.
REMARKS.--A large amount of natural storage and some artificial regulation is afforded by many large lakes and the Erie (Barge) Canal system in the river basin. Seneca River basin receives water from Erie (Barge) Canal through Lock 32 near Pittsford. Prior to 1998, a large part of flow from 45.5 mi² of Mud Creek drainage area (Susquehanna River basin) had been diverted into Keuka Lake (Oswego River basin) for power generation.
EXTREMES FOR PERIOD OF RECORD.--Maximum gage height, 14.00 ft, Oct. 31, 2021; minimum gage height, 7.49 ft, Oct. 21, 2018.

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