File:Marquette Harbor Light Michigan 2022-7209.jpg

English: Marquette Harbor Light, Marquette, Michigan. Built: 1865. "Construction of the current structure began in 1865. The 11⁄2-story dwelling shares its design with the lighthouses on Granite Island, Gull Rock and Huron Island. It includes a set of cast-iron spiral stairs winding from the first floor to the lantern centered on the square gallery atop the tower, a decagonal cast-iron lantern was installed, and a new fixed white Fourth Order Fresnel lens with a 190° arc of visibility was assembled atop its cast-iron pedestal. The focal plane is at 70 feet (21 m) above the lake, and was visible for a distance of 10 nautical miles in clear weather. Pictures before and after the dwelling modifications are available. A second story was added in 1910. The tower is attached to a schoolhouse style lighthouse keeper's residence. The area had three fog signals, the louder being in the fog signal building and one in each breakwater. Each had its own distinct tone. The site was considered to be difficult and staffing was a problem. By 1882, after 29 years in operation, ten keepers had either been removed or resigned from service at Marquette. In 1891, a station of the U.S. Life-Saving Service began operations on the lighthouse grounds, with the station located to the west of the lighthouse, which in 1915 became part of the U.S. Coast Guard."--Wikipedia.