Mount Royal Avenue (official French name: Avenue du Mont-Royal) Formerly named Mile End Road is a street in Montreal. The main part of the street transects the borough of Le Plateau-Mont-Royal, from Park Avenue at the foot of Mount Royal, for which the road is named, to Frontenac St. Another section in Rosemont–La Petite-Patrie runs from Molson St. to Pie-IX Boulevard.