Are you sure? That is a long drive to ski St-Sauveur, especially when some places are opening up elsewhere.
Tremblant is also open and I believe that Ste-Anne is opening tomorrow (these two areas hada fixed opening date and are generally not the first to open in Quebec).
I just realized tremblant is about the same distance too. But there tickets are $20 more and it looks like they're gonna have as much open as mss. Still probably gonna head to mss unless I can find a better option.