Map shows interurban railways, and other electric railways in the more densely populated areas.
Obscure Bus Companies/1952
The most obscure bus companies, mostly listed in the 1952 Mass Transportation's Directory, but records of whose existence could not be found anywhere else.
Explore Maine/Maine Department of Transportation
A statewide program provides rural public transportation to the entire state, which is divided into several regions. Further information available at the above web site.