It was in Winnipeg ... but they don't run them anymore, and haven't for several years because they caused so many problems the critical masses were banned by the city. I think once in a while a group of militant cyclists try to hold one, but when a grand total of 2 or 3 of them show up, it doesn't have much impact. Which is a good thing. The last thing Winnipeg needs is more reason to hate cyclists ... they hate them enough as it is.