Laurier Avenue is a commercial and residential street in Montreal, Quebec, Canada. It crosses the boroughs of Outremont, Le Plateau-Mont-Royal and Rosemont–La Petite-Patrie. Saint Denis Street is a major north-south thoroughfare in Montreal, Quebec. It extends from the Notre-Dame-de-Bon-Secours Chapel on Saint Paul Street in Old Montreal to the bank of the Rivière des Prairies at the north end of the island.