Western Massachusetts

Western Massachusetts is a loosely defined geographical region of the U.S. state of Massachusetts which contains the Berkshires, the Pioneer Valley, and some or all of the Swift River Valley. The region is always considered to include Berkshire, Franklin, Hampshire, and Hampden counties, and the eastern parts of the Quabbin Reservoir watershed are sometimes included. The largest city in Western Massachusetts is Springfield, Massachusetts, the region's economic, historic, and cultural capital.