High Quality Content by WIKIPEDIA articles! This is a list of all lighthouses in the U.S. state of Maine as identified by the United States Coast Guard. There are fifty-seven active lights in the state, two of which are maintained as private aids; nine are standing but inactive, and three have been destroyed, one of which has been replaced by a skeleton tower. This includes two stations which originally featured twin towers; in both cases both towers survive but only one of each pair is active.