The New Brunswick Southern Railway (NBSR) and Eastern Maine Railway (EMR) form a 189 mile railway system operating a former Canadian Pacific Railway (CPR) mainline between Saint John, New Brunswick and Brownville Junction, Maine.
The New Brunswick Southern Railway (NBSR) is a 84 mile railway operating in New Brunswick between Saint John and the Canada-U.S. border at McAdam. The Eastern Maine Railway (EMR) is a 105 mile railway operating from the Canada-U.S. border at Vanceboro, Maine to Brownville Junction, Maine.