Harriman State Park

Star4.81
31 reviews
3489 Green Canyon Rd, Island Park, Idaho, 83429-5182, United States

Quick Facts

6,135 ft

Price

$7 - $50/night

Booking

Reservable

Sites

10 campsites

Season

Typically open May 1...

Cell

Has Service

Pets

Pets Allowed

Showers

Opens Idaho Department of Parks and Recreation (Idaho State Parks) site

Official Website
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Real-Time Availability

Select a month, then check for open campsites

March 2026

Real-Time Availability

Select a month, then check for open campsites

March 2026
Harriman State Park
$7.00 - $50.00 / night
Campsite Fees
The $7 Motor Vehicle Entrance Fee (MVEF) is required per vehicle entering the park. Winter Access Fee is $5 per person. Cancellation fees apply if...
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Standard Site Fee$0.00
Hookup Site Fee$0.00
Premium Site Fee$0.00
Hike and Bike Site Fee$0.00
Group Site Fee$0.00
Food Storage Locker Fee$0.00

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What Campers Say

4.81

Top-Rated

Based on 31 reviews

675 Google reviews

Most mentioned

hiking

Some mention

mosquitoes

"Overall highly positive: visitors praise well‑maintained and varied trails, abundant wildlife, historic buildings and cabin/yurt rentals; the park is noted for excellent fishing and groomed winter trails."

Read all reviews

Campground Map

3489 Green Canyon Rd, Island Park, Idaho, 83429-5182, United States

Harriman State Park

3489 Green Canyon Rd, Island Park, Idaho, 83429-5182, United States

Nearby places
Yellowstone National Park (~30 min), Hebgen Lake (~10 min), Henry's Lake (~10 min), Island Park (nearby)
Nearby supplies
Within 10 miles: grocery stores, dining, retail supplies, and propane
Greater than 1 mile: camping supplies and improved camping sites.

Best Time to Camp at Harriman State Park

From May through November, the park welcomes visitors with pleasant summer days climbing to a comfortable 80°F—perfect for casting a line into the renowned trout waters or saddling up for a trail ride through sun-dappled meadows. When winter blankets the landscape, the park transforms into a snowy wonderland where temperatures dip to around 20°F and groomed trails beckon cross-country skiers, snowshoers, and fat-tire bikers to glide through hushed, frosted forests under wide Idaho skies.

Best
Spring(Mar-May)
4.0 / 5

Spring offers wildlife activity and wetland/migration viewing; good overall season.

Best
Summer(Jun-Aug)
4.0 / 5

Peak season for hiking, biking, horseback riding and wildlife viewing.

Best
Fall(Sep-Nov)
4.0 / 5

Seasonal wildlife events (elk bugling) and autumn scenery make fall strong.

Best
Winter(Dec-Feb)
4.0 / 5

Winter 'perfect' for Nordic skiing and snowshoeing; park open year-round.

Planning Tips

  • Peak Season: Peak activities vary seasonally, with summer for hiking and winter for Nordic skiing.. Book 2-3 months ahead.
  • Operating Season: Typically open May 1 to November 30

About Harriman State Park

Nestled within the Greater Yellowstone Ecosystem, Harriman State Park protects a remarkable wildlife refuge where history and nature intertwine along the pristine Henrys Fork of the Snake River. This former Railroad Ranch invites you to explore 22 miles of gentle trails through meadows and forests, stay overnight in rustic cabins or yurts, and experience world-class fly fishing, horseback riding, and year-round outdoor adventures in one of Idaho's most scenic and wildlife-rich destinations.
Historic ranch-turned-park offering rustic cabins and yurts for rent and a group site; reports indicate overnight tent camping is not allowed.

Best Campsites

Curated by campers, for campers
Reveal picks

Reserving a campsite

Check-in
Check-in procedure involves finding a key on the table.
Check-out
Keys must be left in the facility upon check-out.
Stay Limit
Camping not permitted.

Need help booking Harriman State Park?

Reservation tips, booking windows, and free cancellation alerts.


Amenities available

Showers
Potable water
Flush toilets
Fire rings
Picnic tables
Firewood available

Activities you can enjoy

Extensive opportunities for hiking, biking, fishing, horseback riding and winter sports, with trails and shoreline access along lakes and the Henry's Fork of the Snake River and abundant wildlife viewing.
Hiking
Fishing
Biking
Boating
Wildlife viewing
Cultural and Educational Programs
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Policies & Safety

Hazards & AlertsRegular wildlife activity (moose, elk, bears and other animals) — visitors are advised to store food properly. Mosquitoes can be significant in spring. Some visitors report dirt-bike activity in nearby areas.

Weather at Harriman State Park

Trip Planning Tools

Reviews

From Booking Sources
4.8
31 reviews
Top-Rated
Top-Rated
Harriman State Park is top-rated, placing it in the top 15% of campgrounds based on reviews
Overall highly positive: visitors praise well‑maintained and varied trails, abundant wildlife, historic buildings and cabin/yurt rentals; the park is noted for excellent fishing and groomed winter trails.
Review Summaries
Based on 31 reviews

What Campers Love

Well‑marked trails for hiking, mountain biking and winter sports; outstanding wildlife viewing (moose, eagles, trumpeter swans, elk); historic structures and on‑site cabin/yurt rentals; strong...
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Based on 31 reviews

Pro Tips & Recommendations

Store food securely because of wildlife, pack out trash, keep pets on leash, verify water availability for yurts before arrival, expect muddy trails after rain, and note the office may open at 9 a.m....
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Based on 31 reviews
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Last updated March 29, 2026
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