Eastern Idaho’s Yellowstone Teton Territory offers visitors and recreation enthusiasts a spectacular year-round experience to remember. In this corner of Idaho you can explore a wilderness that’s wild enough for adventure while staying in some of the most comfortable accommodations around. Home to Island Park, the Snake River and St. Anthony Sand Dunes, adjacent to Yellowstone and Grand Teton National Parks, and Craters of the Moon, Eastern Idaho is practically headquarters for outdoor adventure.