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Harriman State Park

Island Park, ID

Nature

A former railroad-family ranch on the Henrys Fork, now a wildlife refuge with trumpeter swans, moose and historic ranch buildings. Day-use fee; trails for walking and cycling.

Nearest town
Island Park, ID
Category
Nature & parks
GPS
44.3226, -111.4604

Hours, fees and access change. Confirm with the operator or park before you go.

Good to know

Best time to go

JanFebMarAprMayJunJulAugSepOctNovDec

The most pleasant months are usually May–June and September. Still fine, with some compromises, in July–August. Cold, short days in December–March. (Estimate from long-term temperature averages, terrain and pass seasons)

Featured in these trip guides

Mesa Falls to Yellowstone’s Grand Canyon, Hayden Valley and Cody – Upper Mesa Falls - Idaho (12145650713)© Brenton Cooper from North Ogden, USA · CC BY 2.0
20
National park loops

Mesa Falls to Yellowstone’s Grand Canyon, Hayden Valley and Cody

274 mi9 stops5 days

Nearby

Upper Mesa Falls - Idaho (12145650713)© Brenton Cooper from North Ogden, USA · CC BY 2.0
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Upper Mesa Falls

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Old Faithful Inn – Ole Faithful Lodge© Amay0701 · CC BY-SA 3.0
Stays

Old Faithful Inn

Yellowstone, WY
Big Dipper Ursa Major over Old Faithful geyser Yellowstone National Park Wyoming Astrophotography© Astroval1 · CC BY-SA 4.0
Editor's pick
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Old Faithful

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Grand Prismatic Spring – green trees near lake under cloudy sky during daytimePhoto by Laminda Nickla on Unsplash
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Grand Prismatic Spring

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Campsites nearby

  • Buttermilk CampgroundCampsite
    8 mi from Harriman State Park
    TentsCaravansMotorhomesElectricityDrinking waterToilets
    WebsiteOSMAdd to trip
  • Buffalo CampgroundCampsite
    9 mi from Harriman State Park
    TentsCaravansMotorhomesElectricityDrinking waterToilets
    WebsiteOSMAdd to trip
  • McCrea Bridge CampgroundCampsite
    10 mi from Harriman State Park · 23 pitches
    TentsCaravansMotorhomesDrinking waterToilets
    WebsiteOSMAdd to trip
  • Upper Coffeepot CampgroundCampsite
    13 mi from Harriman State Park · 14 pitches
    TentsCaravansMotorhomesElectricityDrinking waterToilets
    WebsiteOSMAdd to trip
  • Grandview CampgroundCampsite
    13 mi from Harriman State Park · 9 pitches
    TentsMotorhomesElectricityDrinking waterToilets
    WebsiteOSMAdd to trip
  • Warm River CampgroundCampsite
    16 mi from Harriman State Park
    TentsCaravansMotorhomesElectricityDrinking waterToilets
    WebsiteOSMAdd to trip

All campsites in Idaho · Campsite data: © OpenStreetMap contributors, ODbL 1.0 · Updated October 3, 2026

FAQs

Where is Harriman State Park?

Harriman State Park is in Island Park, ID, at GPS 44.3226, -111.4604. It is about 29 mi from West Yellowstone.

Can you camp near Harriman State Park?

Yes. The nearest campsite listed in OpenStreetMap is Buffalo Run RV Park & Cabins, about 5 mi away; within 25 mi there are 19 campsites and motorhome stopovers.

Which road trips pass Harriman State Park?

Harriman State Park is a stop on these CampingSpirit trip guides: Mesa Falls to Yellowstone’s Grand Canyon, Hayden Valley and Cody.

What is there to see near Harriman State Park?

Places worth a stop nearby: Upper Mesa Falls (11 mi), Old Faithful Inn (33 mi), Old Faithful (33 mi) and Grand Prismatic Spring (34 mi).

When is the best time to visit Harriman State Park?

The most pleasant months are usually May–June and September. Still fine, with some compromises, in July–August. (Estimate from long-term temperature averages, terrain and pass seasons)