Winter 2023-2024 Update:
Winter has officially arrived at Harriman State Park of Idaho. The snow dances have worked to bring on the snow.
All our trails now require snowshoes, cross country skis or fat tire bikes to use. There is a $7 Motor Vehicle Entrance Fee (MVEF) per vehicle to visit the Park. You can purchase a 2024 Annual MVEF Pass for $80 at the Park Headquarters. Vehicles registered in the State of Idaho can purchase a $10 Idaho State Park Passport from the Department of Motor Vehicles.
The winter access fee of $6 per person/per day or use of a Season Access Pass is now in place. These fees help with the cost of plowing and grooming our trails.
The fees can be paid at the Visitor Center during the hours of 9-5 or at the main entrance outside of Visitor Center hours. Winter Season Access passes can be purchased for $50 for Individual, $75 for a couple pass or $100 for a family pass.
Attention: Dogs are only permitted on the Hounds Trail, which is outside of the waterfowl and wildlife refuge. Dogs cannot be left unattended and must always be on a six-foot leash. Department employees may impound or remove any stray or unattended animals at the owner’s expense. (IDAPA 26.01 20.175. 09)
While it is winter and bears are hibernating, always good practice to be Bear Aware! Remember to make noise; travel in groups only hike/bike during daylight hours.
Please be advised that Harriman State Park of Idaho will experience significant construction in the historic area during 2024-2025.
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About the Park
Harriman State Park lies within a 16,000-acre wildlife refuge in the Greater Yellowstone Ecosystem. Known for its beautiful scenery and wildlife, Harriman State Park offers 22 miles of hiking, mountain biking, and horseback riding trails that slink through meadows, meander along river banks and through lush evergreen forests. Some of the best fly fishing waters in the nation flow through eight miles of Harriman State Park, known by anglers all over the world over as “the Ranch.” Moose, elk and Trumpeter Swans, the world’s largest waterfowl species, are a common sight at Harriman.
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.
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 (CLOSED winter 2022) on weekends, offering views of Henrys Fork and its wintering wildlife. This park is generously supported by the Friends of Harriman State Park.
Address: 3489 Green Canyon Rd
Island Park, ID 83429
Phone: (208) 558-7368
Hours of Operation: Day-use locations within state parks are open from 7 am to 10 pm, per Idaho state code 26.01.20 (5). Day-use hours may change based on park manager discretion.