Typically, during the off-season, much of Yellowstone is only accessible through commercially guided snowmobiles and snowcoaches. The amount of snowfall varies across the park, so the type of ...
Private outings and multiday tours are also available. See many of Yellowstone's top thermal attractions on this small-group outing, which also travels through Grand Teton National Park.
All roads normally open to automobiles are closed through mid-March to accommodate oversnow travel, with the exception of the road from the North Entrance to Cooke City.