The Green River is a tributary river to the Deerfield River in the United States states of Vermont and Massachusetts. It has a catchment area of roughly 230.5 square kilometres (89.0 sq mi), and is 45 kilometres (28 mi) long.[1][2] The town of Greenfield in Massachusetts is located on it.[2]
42°34′20″N 72°36′10″W / 42.5721°N 72.6027°W