Opening

Dust off the tux. You'll want it for this weekend. Keystone is opening more terrain, and its weekend "Formal Opening" is black-tie optional.

Portions of five more trails will open, making a total of 160 acres for riding. Skiers and riders are encouraged to dress in formal wear; in the afternoon, those properly attired can enter a raffle with prizes including a season pass, iPod and overnight packages.

If you're more a pancake breakfast kind of person than a formal-wear kind of person, you might want to head to Breckenridge.A complimentary pancake breakfast will celebrate the opening of Breck Friday morning. Live music and give-aways are also planned. Five runs, three high-speed lifts and a terrain park will be open.