USGS Water-Year Summary 2021
01198000 GREEN RIVER NEAR GREAT BARRINGTON, MA
LOCATION - Lat 42°11'34.47", long 73°23'28.43" referenced to North American Datum of 1983, Berkshire County, MA, Hydrologic Unit 01100005, on left bank at upstream side of bridge on Hurlburt Street, 0.2 mi downstream from Seekonk Brook, 3 mi upstream from mouth, and 1.5 mi west of Great Barrington.
DRAINAGE AREA - 51 mi².
PERIOD OF RECORD - Discharge: October 1951 to September 1971, March 1994 to September 1996, and August 2007 to current year.
GAGE - Water-stage recorder with satellite telemeter and crest-stage gage. Datum of gage is 690 ft above National Geodetic Vertical Datum of 1929, from topographic map.
COOPERATION - Massachusetts Department of Conservation and Recreation, Water Resources Commission.