LOCATION.--Lat 44°14'03.0", long
        74°34'17.5" referenced to North American Datum of
        1983, St. Lawrence County, NY, Hydrologic Unit 04290005, on
        left bank 0.5 mi downstream from powerplant at Piercefield, and
        1.5 mi upstream from Dead Creek.
        DRAINAGE AREA.--721 mi².
        PERIOD OF RECORD.--August 1908 to current year.
        REVISIONS HISTORY.--WSP 604: 1924. WSP 1387: 1910, 1913,
        1914(M), 1916, 1921. WDR NY-82-1: Drainage area.
        GAGE.--Water-stage recorder and crest-stage gage. Datum
        of gage is 1,502.12 ft above NGVD of 1929 and 1,502.00 ft above
        NAVD of 1988. Prior to Jan. 1, 1911, nonrecording gage at
        present site at datum 2.00 ft higher, and Jan. 1, 1911 to Oct.
        21, 1912, nonrecording gage at present site and datum.
        REMARKS.--Seasonal distribution of flow modified by
        natural storage in lakes and ponds upstream from station and by
        regulation of Forked Lake, Round Lake, Lows Lake, and Raquette
        Pond (Tupper Lake) at Setting Pole Dam. Extensive diurnal
        fluctuation caused by powerplant at Piercefield.
        Water Years 2014-24: Records good except those for estimated
        daily discharges, which are poor.
        EXTREMES FOR PERIOD OF RECORD.--Maximum discharge,
        10,400 ft³/s, May 1, 2011, gage height, 13.40 ft; minimum
        discharge not determined.
        EXTREMES OUTSIDE PERIOD OF RECORD.--Maximum discharge,
        about 7,000 ft³/s, May 1, 1900 (from New York State Museum
        Bulletin 85).