Twenty of the world's most thrilling Alpine destinations, from classic resorts to off-piste powder stashes to heli-skiing and beyond. Skiers and snowboarders, prepare to realize your wildest travel dreams as we take you to twenty of the best mountains on the planet. They include: Alta and Snowbird's incomparable Utah powder; glitzy Aspen's motherload of overlooked backcountry; Whistler, B.C., and the secret of its fame and fortune; boundless adventures on the glaciers and couloirs of Chamonix, Verbier, Val d'Isere, and St. Anton in the European Alps; the lesser-known treasures at Fernie, B.C., Big Mountain, Montana, and La Grave, France; and finally some way-off-the-charts lines to be experienced in Alaska, Greenland, and Antarctica.