Westfield River

Westfield River Agawam River (archaic)
Westfield River in Huntington (the "Main Stem")
The Westfield River and its major tributaries
Location
Country	United States
State	Massachusetts
Region	Metropolitan Springfield
District	Hampden County, Massachusetts
Municipality	Westfield, Massachusetts
Physical characteristics
Source	North Branch Westfield River
• location	Berkshires
• coordinates	42°34′09″N 73°01′54″W / 42.56917°N 73.03167°W / 42.56917; -73.03167
• elevation	1,734 ft (529 m)
Source confluence	debouch of the Swift River
• coordinates	42°26′39″N 72°51′31″W / 42.44417°N 72.85861°W / 42.44417; -72.85861
• elevation	922 ft (281 m)
Mouth	Connecticut River
• coordinates	42°05′03″N 72°35′08″W / 42.08417°N 72.58556°W / 42.08417; -72.58556
• elevation	39 ft (12 m)
Length	78.1 mi (125.7 km)
Basin size	517 sq mi (1,340 km2)
Basin features
Tributaries
• left	Swift River Dead Branch (East Branch)
• right	Middle Branch West Branch Little River
National Wild and Scenic River
Type	Wild, Scenic, Recreational
Designated	November 2, 1993

The Westfield River is a major tributary of the Connecticut River located in the Berkshires and Pioneer Valley regions of western Massachusetts. With four major tributary branches that converge west of the city of Westfield, it flows 78.1 miles (125.7 km) (measured from the source of its North Branch) before its confluence with the Connecticut River at Agawam, across from the city of Springfield's Metro Center district.^[1][2] Known for its whitewater rapids and scenery, the Westfield River provides over 50 miles (80 km) of whitewater canoeing and kayaking, in addition to one of the largest roadless wilderness areas remaining in the Commonwealth.^[3]

The Westfield River is the Connecticut River's longest tributary in Massachusetts, although the Chicopee River's basin is much larger, and contributes more water to the Connecticut. The Connecticut's northern tributary, the Deerfield River, is nearly as long as the Westfield, being only 2.1 miles (3.4 km) shorter.

During the mid-20th century, the Westfield River was so polluted that it would change color based on the nature of the contaminant. Today, the river is clean enough for swimming.^[4] It is a state and locally managed river featuring native trout fishing and rugged mountain scenery in the context of a historical mill town settlement (at Westfield).