Concierge.com's insider take:
Mountain Musher Dog Sled Rides runs trips twice daily on the 10,000-acre Diamond Star Ranch outside Vail. Two people board a sled operated by a musher and pulled by 10 to 12 friendly huskies. The experience is a strangely quiet glide through snow-muffled woods. Halfway through, clients are given the option to take the reins (970-653-7877; www.mountainmusher.com).