Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.Sagamore Hill Military Reservation was a coastal defense site located in Sagamore, Massachusetts. The Sagamore Hill Military Reservation was built on state land. Its mission was to protect the Cape Cod Canal from possible air and naval attack. It never did have to fire its guns though but it did play an important part in the defense of the canal.The Panama mounts (1942) and battery commander''s station of a two-gun 155mm battery still remain here, as well as several magazine igloos.