Bangor and Aroostook Railroad
This rail line was formed in 1891 to combine the lines of the Bangor and Piscataquis Railroad and the Bangor and Katahdin Railroad. It was based in Bangor. Lines went to Oakfield, Houlton, Madawaska, Presque Isle, and Searsport. It was sold in 1995 and declared bankrupt in 2002. It is now the Montreal, Maine, and Atlantic Railway under the ownership of Rail World, Inc.