Gull Rock Light Station
Undated USCG photo. | |
| Location | West of Manitou Island, Grant Township, Keweenaw County, Michigan |
|---|---|
| Coordinates | 47°25′2″N 87°39′49″W / 47.41722°N 87.66361°W |
| Tower | |
| Constructed | 1867 |
| Construction | Brick |
| Automated | 1913 |
| Height | 46 feet (14 m) |
| Shape | Square brick tower with cast iron lantern room. and gallery attached church-style” to 2-story brick Light keeper's house |
| Markings | white with black lantern and red roof on house |
| Heritage | National Register of Historic Places listed place |
| Light | |
| First lit | 1867 |
| Focal height | 50 feet (15 m) |
| Lens | Fourth order Fresnel lens (original), 9.8-inch (250 mm) Tideland Signal acrylic lens (current) |
| Range | 7.8 nautical miles; 14 kilometres (9 mi) |
| Characteristic | 2 white flashes every 5 seconds. 0.4s fl 0.6s ec. 0.4s fl 3.6s ec. |
Gull Rock Light Station | |
| Nearest city | Copper Harbor, Michigan |
| MPS | U.S. Coast Guard Lighthouses and Light Stations on the Great Lakes TR |
| NRHP reference No. | 84001751 |
| Added to NRHP | July 19, 1984 |
The Gull Rock Light Station is an active lighthouse located on Gull Rock, just west of Manitou Island, off the tip of Michigan's Keweenaw Peninsula in Lake Superior. The light was listed on the National Register of Historic Places in 1984, even as its condition deteriorated, resulting in its placement on the Lighthouse Digest Doomsday List.