Hello, how may I help you? nooooooooooooooo I need some information about a city sure thing, I can help. montreal is a city on a river and what river is that? I believe the river is "Canadian River" how long is this river? Approximately 423 Km does it run through any other cities? It runs through Toronto and Detroit, Michigan Amazing! Hopefully it doesnt randomly cut off in the middle of any of those cities You're welcome