BATHYM100 contains bathymetry lines for the Gulf of Maine at a scale of 1:100,000 showing depth in 10 meter intervals. This dataset was developed by the Maine Geological Survey using USGS 30 X 60 minute series topographic-bathymetric maps. Bathymetric contours are coded with depth in meters (10 meter interval mean lower low water datum). Spatial topology varies from good to poor.
Lighthouses is a shapefile that depicts locations of lighthouse in the state of Maine. This data layer was created for the Maine Coastal Atlas Project from a list of lighthouses and GPS coordinates published by the Maine Office of Tourism. Attributes include the name of the lighthouse and its latitude and longitude coordinates.