LOCATION.--Lat 44°51'49", long 74°46'44" referenced to North American Datum of 1983, St. Lawrence County, NY, Hydrologic Unit 04150306, on left bank 600 ft upstream from abandoned highway bridge at Brasher Center, and 6.5 mi downstream from West Branch.
DRAINAGE AREA.--612 mi².
PERIOD OF RECORD.--August 1910 to October 1917, November 1917 to December 1918 (estimated monthly discharges only, published in WSP 1307), January 1919 to September 1996, annual maximum only--1997, October 1997 to current year.
REVISIONS HISTORY.--WSP 1387: 1910-16, 1917(M). WDR NY-82-1: Drainage area.
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 217.23 ft above NGVD of 1929 and 216.83 ft above NAVD of 1988. Prior to June 24, 1916, nonrecording gage at site 600 ft downstream at different datum. June 24, 1916 to Nov. 10, 1917, and Jan. 1, 1919 to Aug. 13, 1920, nonrecording gage at present site and datum.
REMARKS.--Slight diurnal fluctuation caused by powerplant operations upstream from station.
Water Years 2014-20: Records good except those for estimated daily discharges, which are poor.

EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 16,800 ft³/s, Apr. 6, 1937, gage height, 12.82 ft; maximum gage height, about 15.3 ft, Apr. 6, 1937 (ice jam); minimum discharge observed, about 34 ft³/s, Aug. 8, 1917, gage height, 5.25 ft.

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