Its longest route travelled from Quebec City to Sherbrooke, to then to Newport, Vermont.

[2]: Table 1  The Boston & Maine and the New York, New Haven and Hartford Railroad operated the Connecticut Yankee from New York City's Grand Central Terminal, up Connecticut River Valley, to Newport and along Quebec Central territory to Sherbrooke and Montreal.

However, because the CPR only owned 10% of the Quebec Central's stock, it could not tear up the track and dispose of the right-of-way.

In December 1999, a local resident who owned a trucking company (Express Marco Incorporated) bought the railway from the CPR and revived it, with trains running starting in June 2000.

[3][4] The remaining portions of the line currently belong to the Ministère des Transports du Québec.