Rosemont station (Montreal Metro) Rosemont station (Montreal Metro) Rosemont station is a Montreal Metro station in the borough of Rosemont–La Petite-Patrie in Montreal, Quebec, Canada. It is operated by the Société de transport de Montréal (STM) and serves the Orange Line. The station opened on October 14, 1966, as part of the original network of the Metro. The station, designed by Duplessis, Labelle et Derome, is a normal side platform station, built in tunnel. It has a ticket barrier at transept level leading to a single entrance adjacent to a bus loop and a municipal parking lot. This station is named for boulevard Rosemont,
Blue, Green, and Waterfront Lines (Cleveland) Green Lines on the same platform, an arrangement unique in North American rail transit. The shared stations have low platforms for the Blue and Green Lines directly adjacent to high platforms for the Red Line. RTA Central Rail yards and headquarters are located at the East 55th station, where trains of all rail lines are stored and serviced. East of East 55th, the Blue and Green Lines split from the Red Line and travel east on a separate, dedicated, grade separated right-of way. A complex of tunnels existed at this junction to provide means for the Blue and Green Line