Hello how may I help you? May I help you? Yes, sorry, can you help me with Montreal facts. Yes I can. What would you like to know? I would like to know what river Montreal is on Montreal is on the Montreal River. Okay, I thought it was also on the St Lawrence River. But that makes sense too It is actually on both. Neat, how long is the Montreal River? It is 74 miles long. Very cool, thank you! You are welcome