LOCATION--Lat 42°42'32", long 73°11'50", Berkshire County, Hydrologic Unit 02020003, on left bank 0.1 mi upstream from bridge on State Highway 2 at Williamstown and 0.8 mi upstream from mouth.
DRAINAGE AREA--42.6 mi².
PERIOD OF RECORD--Discharge: September 1949 to current year.
Water-quality records: Water years 1967–69.
GAGE--Data Collection Platform with satellite telemeter. Datum of gage is 615 ft above National Geodetic Vertical Datum of 1929, and 610.55 ft above North American Vertical Datum of 1988.
COOPERATION BY--Massachusetts Department of Conservation and Recreation, Office of Water Resources.