Pan Am Railways has a subsidiary in which former US Class I railroad in Maine?
Pan Am Railways Pan Am Railways, Inc. (PAR), formerly known as Guilford Rail System (GRS) before March 2006, is an American holding company that owns and operates Class II regional railroads covering northern New England from Mattawamkeag, Maine, to Rotterdam Junction, New York. The primary subsidiaries of Pan Am Railways are Boston and Maine Corporation (reporting mark BM) , Maine Central Railroad Company (reporting mark MEC) , Portland Terminal Company (reporting mark PTM) , and Springfield Terminal Railway Company (reporting mark ST) ; BM and MEC are operated under lease by ST.
Conrail Conrail, the Consolidated Rail Corporation, (reporting mark CR) , was the primary Class I railroad in the Northeastern United States between 1976 and 1999, when its routes were split between the CSX Corporation and Norfolk Southern Railway. Conrail, a portmanteau of "consolidated" and "rail" from the name of the company, operates now as a joint-subsidiary for some limited functions.