Sun Valley, Idaho
By March, the ski-mad crowds have thinned out from Idaho’s premier ski resort, but assuming global warming hasn’t completely ruined the season, you’ll still have loads of snow on the mountain. That means ample opportunity for skiing, snowshoeing, snowmobiling, and even cold weather fly fishing. It’s also prime time to spend a night at Idaho’s Dark Sky Reserve, where the best stargazing in the northwest seems especially bright on a cold, clear night.
March is also when the Sun Valley Film Festival comes to town, a severely scaled back version of Sundance with all the great films and celebrities but minus the hoards who come just to party. Only about 4,000 people attend the festival, but it still draws names like Clint Eastwood, Geena Davis, and Gwyneth Paltrow every year.