LOCATION--Lat 42° 37’33.6", long 72° 51’15.1"(revised), Franklin County, Hydrologic Unit 01080203, on left bank 0.8 mi east of Charlemont, 2.5 mi downstream from Chickley River, and at mile 24.5.
DRAINAGE AREA--361 mi².
PERIOD OF RECORD--Discharge: June 1913 to current year.
Water-quality records: Water years 1954–55, 1958, 1967–69, 1995.
REVISED RECORDS--WSP 781: 1915(M). WSP 1301: 1918(M). WDR MA-RI-84-1: drainage area.
GAGE--Data Collection Platform with satellite telemeter. Datum of gage is 516.84 ft above NAVD 1988. Datum previously reported as 517.36 ft above NGVD 1929.
REMARKS--Flow regulated by Somerset Reservoir, since 1924 by Harriman Reservoir, and by several powerplants upstream. Telephone and satellite gage-height telemeter at station.
COOPERATION BY--Great River Hydro Company