Portsmouth Harbor Lighthouse
New Castle, New Hampshire
Click here for a gallery of Portsmouth Harbor Light photos on Shutterfly (prints and gift items available)
New England Lighthouse Tours - Personalized minivan tours based in Portsmouth, NH.
Location: Next to Fort Constitution, near the mouth of the Piscataqua River, Portsmouth Harbor
Coordinates: 43 04 16 N 70 42 31 W
View Portsmouth Harbor Lighthouse in a larger map
Active U.S. Coast Guard aid to navigation.
Lighthouse is managed by Friends of Portsmouth Harbor Lighthouses, a chapter of the American Lighthouse Foundation.
Open for public open houses on Sunday afternoons, 1 to 5 p.m., from Memorial Day weekend in late May to Columbus Day weekend in October. Visit Friends of Portsmouth Harbor Lighthouses for more details.
Station Established: 1771
Present Tower Built: 1878
Construction Material: Cast iron with brick lining
Other buildings still standing: 1872 keeper's house, 1903 oil house
Tower Height: 48 feet
Focal Plane: 52 feet
Present optic: Fourth-order Fresnel lens (below)
Characteristic: Fixed Green; Visibility: 12 nautical miles
Fog signal: One blast every 10 seconds
Click below to hear the fog signal
Fort Constitution History
New Castle, NH
Portsmouth Chamber of Commerce
U.S. Coast Guard Station Portsmouth Harbor