LOCATION.--Lat 43°05'34.6", long
77°40'51.0" referenced to North American Datum of
1983, Monroe County, NY, Hydrologic Unit 04130003, on left
bank on downstream side of Ballantyne Bridge on
State Highway 252, 1.6 mi west of Mortimer, 3.0 mi upstream
from Erie (Barge) Canal, and 5.1 mi southwest of
DRAINAGE AREA.--2,210 mi².
PERIOD OF RECORD.--October 1973 to March
2021 (gage heights only). March 2021 to current
REVISIONS HISTORY.--WDR NY-82-3: Drainage area.
GAGE.--Water-stage recorder and, since March 2021,
acoustic velocity meter and crest-stage gage. Datum of gage is
500.00 ft above NGVD of 1929 and 499.33 ft above NAVD of 1988.
Prior to Mar. 18, 2021, at site 570 ft upstream at same
REMARKS.--River regulated by operation of Erie (Barge)
Canal, downstream powerplants, and at high stages by Mount
Morris Lake (station 04224000).
EXTREMES FOR PERIOD OF RECORD.--Maximum gage height,
20.57 ft, Jan. 10, 1998; minimum gage height recorded, 8.20 ft,
Nov. 9, 1979, but may have been lower as a result of extreme