LOCATION.--Lat 43°07'31.4", long 73°35'05.7" referenced to North American Datum of 1983, Washington County, NY, Hydrologic Unit 02020003, on left bank 1,400 ft downstream from bridge on U.S. Highway 4 at Thomson, and 500 ft upstream from dam at Lock 5 of the Champlain (Barge) Canal.
DRAINAGE AREA.--3,000 mi².
PERIOD OF RECORD.--September 2014 to current year.
GAGE.--Water-stage recorder and crest-stage gage. Datum of gage is 82.24 ft above NGVD of 1929.
REMARKS.--Flow regulated appreciably by Great Sacandaga Lake since March 1930 (station 01323500) and Indian Lake since 1898 (station 01314500). Diurnal fluctuation caused by powerplants upstream from station. Water is diverted into St. Lawrence River basin through Glens Falls feeder, Bond Creek, and Champlain (Barge) Canal, and occasionally may be received from that basin through summit level of Champlain (Barge) Canal at Dunham Basin. Water Year 2015: Records good except those for estimated daily discharges, which are poor.
EXTREMES FOR PERIOD OF RECORD.--Maximum discharge, 17,700 ft³/s, gage height, 22.53 ft, Apr. 22, 2015; minimum discharge, 1,320 ft³/s, May 29, Sept. 9, 2015, gage height, 19.68 ft.

Peak Flow and Stage Information