LOCATION--Lat 42° 08'52", long 72° 24'00", Hampden County, Hydrologic Unit 01080204, on left bank at downstream side of Crane Hill Road bridge, about 0.8 mi upstream from mouth at Chicopee River and 1.4 mi east of North Wilbraham.
DRAINAGE AREA--13.6 mi².
PERIOD OF RECORD--July 2007 to current year. Miscellaneous discharge measurements made in water years 1992-94.
GAGE--Water-stage recorder with satellite telemeter. Elevation of gage is 250 ft above National Geodetic Vertical Datum of 1929, from topographic map.
COOPERATION BY--Massachusetts Executive Office of Energy and Environmental Affairs

Photo of Twelvemile Brook Gage