Yellowstone National Park, Wyo.

In Yellowstone National Park, snowcoaches serve as winter transportation to Grand Canyon of the Yellowstone, the park's most spectacular feature. They depart from Mammoth Hot Springs Hotel and Old Faithful Snow Lodge, the only Yellowstone lodging facilities open during winter. Coaches are heated and lunch is included on this narrated tour. Cross-country skiing and snowshoeing are also popular winter park activities. Concessionaire Xanterra Parks & Resorts offers a variety of packages that include lodging and tours.

For more information: National Park Services