The Castleton Subdivision is a railroad line owned and operated by #CSXTransportation in the #USState of New York. The line runs from Schodack northwest to Selkirk along a former #NewYorkCentralRailroad line. At its southeast end, it junctions with the #BerkshireSubdivision and #SchodackSubdivision. After crossing the #HudsonRiver on the #AlfredHSmithMemorialBridge, it meets the #RiverSubdivision and #PortSubdivision at Selkirk and ends at #SelkirkYard, where the #SelkirkSubdivision begins.