sentences:  The line crosses the Canadian Pacific (CP) Mactier Subdivision at Utopia, where a small interchange yard was subsequently built using old rails and ties pulled up from Allandale Yard.This was necessary as the abandonment of the Newmarket Sub north and south of Barrie effectively isolated the line from the North American rail network.The yard is also where Maintenance Of Way (MOW) equipment and the locomotive is stored when not in use.