There's also Mont Joye in North Hatley and Mont Bellevue in Sherbrooke to round things out in the Townships. Mont Joye is 500' vertical and has a fixed grip quad and T-bar, fun trails and good poutine.
Thanks, Jeremy. Hate to break the news to you, but Mont Joye is no longer. They pulled out the lifts several weeks ago (article), joining Mont Shefford and Mont Glen, which went NELSAP a few years ago.