sentences:  Rising in the Berkshire Hills region of Massachusetts, it flows southeastwardly to join the Connecticut River at Agawam—directly across from Springfield's Metro Center (downtown).The Westfield River has a drainage area that includes three named branches, which join in Huntington to form the Westfield River's main stem, which flows through Russell into Westfield.The branches are the North Branch (sometimes called the East Branch), which rises in the town of Savoy and flows southeast through Windsor, Cummington, and Chesterfield; the Middle Branch, which rises in the town of Peru and flows southeast through Worthington, Middlefield, and Chester; and the West Branch, which has its origins in Washington and Becket, then flows east through Chester.