Eastern Idaho has over 1800 miles of groomed trails, numerous off-load areas and quaint warming huts, as well as endless breathtaking open ridges, meadows, scenery, and wildlife. Learn More
Eastern Idaho's Yellowstone Teton Territory
Harriman State Park
Owned by Union Pacific Railroad investors from 1902 to 1977, the park acreage served as a cattle ranch and private retreat for the Harriman and Guggenheim families. Today, Harriman State Park provides visitors a perfect setting to enjoy the unique history and natural beauty of the area. Located in beautiful Island Park, Idaho, Harriman State Park encompasses 11,000 acres within the Greater Yellowstone Ecosystem. The park provides excellent opportunities for fly fishing, horseback riding, mountain biking trails, nordic ski trails, outdoor recreation and environmental interpretation programs.
Visitors can stay overnight in Harriman’s unique overnight facilities, such as the rustic Yurts or Ranch Manager’s House. Harriman’s rental facilities are perfect for family events, weddings, retreats and learning conferences. During the summer, tours of the historic Railroad Ranch buildings and interpretive nature programs are offered on weekends and holidays by our knowledgeable park rangers. Winter activities include over 24 miles of groomed Nordic skiing trails, snowshoeing, and fat biking. The historic Jones House serves as a warming hut on weekends, offering views of Henrys Fork and its wintering wildlife.