US Board of Geographic Names (GNIS) was used to extract 57 lighthouses for the Maine coast.. These lighthouse location points were verified using orthoimagery and NOAA nautical charts. Some of the points were moved to represent a more accurate position and were placed on or as close to the lighthouse structure as possible. A list from Wkipedia was used to locate 6 additions llighthouses that were not included in the GNIS data. These additional points were added to the dataset. Live links to lighthouse images were included from the Wkipedia site and were also coded active/inactive using data available at the time of publication.