Every Friday night during peak winter season, Ullr Nights, a family-friendly event in Snowmass, is offered by the Aspen Skiing Company. Celebrating Ullr, the Norse god of snow, this fun event takes place at Elk Camp on Snowmass Mountain. Ride the gondola up the mountain and you'll find plenty of winter activities including tubing, ice skating and snow biking, as well a s'mores and hot chocolate by the bonfire. A la carte dining, indoor kids' activities, live music and dancing round out the evening. Details at aspensnowmass.com