Mammoth Hot Springs is accessible year-round from US 89 and provides a wonderful home away from home to enjoy Yellowstone National Park in the wintertime. The Upper Terrace Loop Ski Trail can be reached via a personal vehicle, while the rest of these ski trails can be reached via a skier shuttle.
Skier Shuttle services are available from Mammoth Hot Springs Hotel to the Swan Lake and Indian Creek areas on a prearranged basis only. Tickets must be purchased in advance from Yellowstone Park Lodges. Arrangements need to be made for pickup ahead of time. If you miss your shuttle pickup, notify the front desk upon your return to prevent initiation of a search.