They didn't have free reign of all four mountains like they do now. And, now, they have their own mountain and terrain park. An all new terrain park has made its debuts on Mystery Mountain this season. While Lutsen has long excelled on natural terrain features, consider them re-invented. With a string of rails, boxes and jumps that connect nearly a mile of terrain, Mystery will be the place for Heartland riders to get their shred on. If you wear snow pants, this is the place to be.