- Spring trails are now open; the $6 winter access fee has ended for the season.
- The $7 per-vehicle MVEF (Motor Vehicle Entrance Fee) remains in effect.
- Seasonal trail closures (April 15–June 15) for waterfowl nesting:
- Affected segments run from the North Gate to the John Muir Trail along the Henrys Fork River, near the bird sanctuary.
- Construction notice (May – October):
- Harriman State Park sewer and waterline construction start date: May 22, 2025. Work continues through fall. Although only yurts are available for overnight rentals during this time, day-use facilities and trail access will be open to the public. When in the park, please observe any posted signage, caution tape, construction cones, or directions from Park staff about construction areas. You may be re-routed to access a trail, and parking lot areas may be limited due to the construction.
- Be advised that the primary location for restrooms will remain the Park’s vault toilets, as well as 4 porta-potties. These will be located at the Visitor Center and Boys House in the historic district. As waterlines will be affected by the construction, water fountains will not be operational. Please make sure to bring plenty of drinking water to use while enjoying the park. Thank you for your patience during our improvement to your State Park!
- The Boys House remains open as a family gathering space.
- Dog policy:
- Dogs allowed only in parking lots; no summer‑season trail access.
- Must be on a six‑foot leash and attended at all times; stray or unattended animals may be impounded at owner’s expense (IDAPA 26.01.20.175.09).
- Bear‑aware reminders:
- Make noise, travel in groups, stick to daylight hours.
- Carry bear spray and a bell.
- Follow our Facebook page for the latest trail conditions, upcoming events, and a link to local weather.
Visitors to Harriman State Park during the winter season can enjoy numerous opportunities for outdoor recreation, lodging, photography, and wildlife viewing. The park offers 24 miles of groomed trails for a variety of winter activities.
- classic cross country skiing
- skate skiing
- snowshoeing
- fat-tire biking
Multiple-use
The park is proud to offer multiple-use trails to serve a variety of visitors and outdoor enthusiasts in fulfilment of the Idaho Department of Parks and Recreation’s mission to; “Improve the quality of life in Idaho through outdoor recreation, and resource stewardship.” We are innovators in outdoor recreation, committed to excellent service and resource stewardship. We foster experiences that renew the human spirit and promote community vitality.
In order for all to safely enjoy the trails they share, it is essential to extend courtesy to other users.
- Be aware of trail etiquette and yielding to other users
- Be mindful of any one-way trails.
- Those on snowshoes and fat-tire bikes need to be mindful of and stay off the groomed ski track.
- Fat-tire bikers should have a minimum width of 3.7-inch diameter tires with pressure of 5 P.S.I. or less. Also, be aware of trail conditions– Ride on the most firm part of the track. Do not ride in soft snow conditions; if you leave a rut deeper than 1 inch, it is too soft.
Programming
The park offers a variety of educational and experiential programs on Saturdays throughout the winter. Self-guided activities for kids, such as the Jr. Ranger and Jr. Snow Explorer Backpack programs are available every day!
Fees
- Motor Vehicle Entrance Fee: $7 per vehicle, Idaho State Parks Passport, or Annual Pass
- Winter Access Pass: Daily: $6 per person, Season Pass: $50 Individual, $75 Per Couple, $100 Per Family (Winter Access Fees are charged in addition to your Motor Vehicle Entry Fees). Gift Certificates are available. Call the park for details
For more information, please contact Harriman State Park at 208-558-7368 or har@idpr.idaho.gov.
Current Conditions
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.
