Massachusetts.

est. 1981 · 67 acres · Rockport, Essex County, Massachusetts, at the northeast tip of Cape Ann on the Atlantic Ocean.

est. 1898 · 12,500 acres · Berkshire County, MA in the northwest corner of the state (Adams, Lanesborough, North Adams, Williamstown, New Ashford, Cheshire)

est. 1934 · 1,900 acres · Brewster, MA (Cape Cod, Barnstable County)

est. 1922 · 335 acres · Concord, MA (Middlesex County)