PARK UPDATE:
2025: Spring/Summer
- 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):
- Extensive water and septic upgrades will impact rental cabins, day‑use areas, parking lots, and roadways.
- Buildings with water/septic service will be offline for rentals; the four yurts are bookable via the new reservations system. getoutside.idaho.gov/harriman
- 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.
Park Reservations
By phone: 1-888-9-CAMPID or 1-888-922-6743
Become a Friend of Harriman State Park, a citizen support group, which serves as a fund raising and volunteer partner for Harriman State Park. FHSP works in cooperation with the park to enhance and preserve the park’s natural and cultural resources and visitor experience. FSHP is a project-driven group. With proceeds from the “Buy a Buck” campaign, the group has replaced the historic jack fence along Highway 20, produced the “Harriman Legacy” DVD, teamed up with Writers at Harriman, and started a native plant garden at the Harriman Visitor Center. They have also written a number of grants for projects that will directly benefit Harriman State Park.
Learn about the History of Harriman State Park and the Historic Railroad Ranch
Writers at Harriman is a one week workshop for high school students held the first week of August every year.
Mountains and Strings is a chamber music camp held for kids in mid July.
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.
