Brewster Islands Military Reservation
| Brewster Islands Military Reservation | |
|---|---|
| Part of Harbor Defenses of Boston | |
| Boston Harbor, Massachusetts | |
6-inch gun at Fort Columbia State Park, Washington state, similar to Battery Jewell. | |
| Site information | |
| Type | Coastal Defense |
| Owner | Massachusetts |
| Controlled by | Boston Harbor Islands National Recreation Area |
| Location | |
| Coordinates | 42°20′30.41″N 70°52′39.65″W / 42.3417806°N 70.8776806°W |
| Site history | |
| Built | 1941 |
| Built by | United States Army |
| In use | 1941-1947 |
| Battles/wars | World War II |
Brewster Islands Military Reservation was a coastal defense site located on Great Brewster Island and Outer Brewster Island in Boston Harbor, Massachusetts as part of the Harbor Defenses of Boston.