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ATTENTION: Harriman State Park of Idaho is a waterfowl and wildlife refuge. Dogs must be on a leash at all times and are not permitted beyond the parking lots at the main trails. The Harriman Hounds Trail, going out into the National Forest and outside the Wildlife Refuge, is groomed during the winter and is the only trail available for dogs. Please clean up after your dogs and put pet refuse in available Dog Waste Station at the start/end of the trail system.

Winter 2022/2023:

There is a $7 Motor Vehicle Entrance Fee (MVEF) per vehicle to visit the Park and a $6 per day per person Winter Access Fee. You can purchase a 2022-2023 Winter Season Pass at the Visitor Center.

Groomed trails require equipment under feet.

Conditions Report: 12/05/2022

  • Recent Snowfall (24 hour): 6”
  • Total Snowfall (24 hour): 31”

Trail Conditions: Equipment is required under feet. Winter Access Fees go into place on Wednesday, 12/07/2022. Be aware that Harriman staff is out packing trails on snowmobiles. Please be patient as we catch up on packing trails before we can start grooming. We are currently receiving more snow and are expecting up to 10” throughout the week.

Suggested Equipment: Snowshoes, classic skis

**Please remember to “Know Your Groom” and stay in your lane**

Stay off ice at Golden and Silver Lake. Henrys Fork from the lower Harriman State Park boundary upstream to the upper Harriman State Park boundary is closed to fishing from December 1 through June 14. Consult the current fishing regulations for accurate information.


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**Note: If you do not have a Facebook account, please use your phone or Google Chrome browser and scroll to the very bottom of this page. There you can see the latest Harriman State Park posts, including conditions updates.

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Please note: Harriman State Park is a waterfowl and wildlife refuge, therefore dogs are not permitted beyond the parking lots at the main trails. 

Park Reservations
By phone: 1-888-9-CAMPID or 1-888-922-6743

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.

Want the latest information and updates from Harriman State park? Follow them on Facebook! Click here or the image below!

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Current Conditions

Contact the 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.

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