With 67 mountain-crammed acres a snowball’s throw from renowned ski slopes, this 20,000 square-foot chalet is a private winter wonderland. Horse trails crisscross through pine trees surrounding Elk Song Ranch, situated near both Snowmass and Aspen’s swanky city center. The $58 million retreat would be spectacular no matter the season, but the mega-estate is the warmest when covered in snow. Winter turns the home’s pond into a private skating rink and the sprawling grounds readily host snowmobiles, cross country skiers and all manner of cold-weather recreation. Inside, owners and guests can thaw out behind a sunken bar or game room or brave a chilly patio long enough to sink into the home’s hot tub and heated swimming pool. [via sothebysrealty]