The Selkirk Subdivision is a railroad line owned by CSX Transportation in the U.S. state of New York.
[2][3] Amtrak's Empire Service, Lake Shore Limited, and Maple Leaf operate over the Selkirk Subdivision northwest of Hoffmans.
The oldest piece of the Selkirk Subdivision is that northwest of Hoffmans, opened in 1836 by the Utica and Schenectady Railroad.
[4] The final piece, from Unionville southeast to Selkirk Yard, was opened in 1924 by the Hudson River Connecting Railroad.
[5] With this final opening, the Selkirk Subdivision became a bypass of Albany for traffic between the west and either Boston or New York City.