Before the construction of the voie Camillien-Houde and Remembrance Road on the mountain in the 1960s, the quickest way to get up was by tramway. For decades, the number 11 tram line, the predecessor to today’s number 11 bus, trundled up the slopes of Mount Royal.I’m not entirely sure what happened to the streetcar tracks. There’s an even bigger mystery, too: in the STM archive photo above you can see that, at one point, the trams passed through a tunnel. Is it still there? If not, what happened to it?