LOCATION.--Lat 44°11'08", long
75°19'51" referenced to North American Datum of 1983,
St. Lawrence County, NY, Hydrologic Unit 04150302, on right
bank just downstream from bridge on Osborne Road, 0.5 mi
northeast of Geers Corners, 1.5 mi downstream from Big Creek,
and 4.0 mi downstream from Harrisville.
DRAINAGE AREA.--258 mi².
PERIOD OF RECORD.--July 1916 to current year.
REVISIONS HISTORY.--WSP 784: 1934. WDR NY-82-1: Drainage
area.
GAGE.--Water-stage recorder and crest-stage gage. Datum
of gage is 738.51 ft above NGVD of 1929 and 737.97 ft above
NAVD of 1988. Prior to Nov. 30, 1933, nonrecording gage at same
site and datum.
REMARKS.--Since June 1985, extensive diurnal fluctuation
and slight regulation caused by powerplant upstream from
station.
Water Years 2014-23: Records good except those for estimated
daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 8,700
ft³/s, Jan. 9, 1998, gage height, 10.64 ft; minimum discharge
prior to regulation, 25 ft³/s, Sept. 1, 1934, gage height, 0.86
ft; minimum discharge since regulation, 20 ft³/s, Aug. 11,
1985, gage height, 0.83 ft.