[2][3] Established in 1855, it is one of the only separately managed fog signals in the United States, having been operationally independent of Monhegan Island Light for most of its existence.

A shed covering several iron pressure tanks is attached to one side.

[4] The station is served by an electromechanical hoist, to facilitate the movement of materials to the site.

[4] Monhegan Island has long been an important marine navigation landmark on the coast of Maine.

After further funding was secured, a steam-powered Daboll trumpet, then an experimental device, was installed in 1870.