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,
Yellow Line (Montreal Metro) place on April 1, 1967. In the first four weeks, the station on Saint Helen's Island served only the construction workers of the Expo site. It finally opened to the public on April 28, 1967, the day after the official opening of Expo 67. In June 2008 the City of Montreal proposed a number of service improvements and Metro extensions, including projecting the Yellow Line from Berri-UQAM to McGill station to ease congestion on that part of the Green Line. In December 2011, an extension to Longueuil was announced. The former Agence métropolitaine de transport (now ARTM) published a study,