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Henrys Lake
Overview
Henrys Lake State Park is a premier high-mountain destination located in the heart of Island Park, Idaho. Known primarily as a world-class trout fishery, the park sits at an elevation of over 6,000 feet and offers a serene escape for those looking to connect with nature. Visitors are often drawn to the stunning alpine scenery and the calm waters of the lake, which spans approximately 6,000 acres. This state park provides a rustic yet comfortable basecamp for exploring the Greater Yellowstone Ecosystem.
Location & Surroundings
Situated in the volcanic caldera of Island Park, the park is surrounded by the dramatic peaks of the Centennial Mountains and the Henrys Lake Range. The landscape is characterized by sagebrush flats and wildflower meadows that bloom in the summer months. Its high-altitude location ensures cooler temperatures even in the height of July, making it a popular refuge from the summer heat. The park is conveniently located near Highway 20, providing easy access while maintaining a quiet, secluded atmosphere.
Amenities & Park Features
The park caters well to RVers with loops providing water and electric hookups at many sites. While there are no sewer hookups at the individual pads, a central dump station is available for guests to use. Boaters and anglers benefit from modern boat ramps and a dedicated fish cleaning station, which is essential given the lake's popularity for trophy fishing. Each site typically includes a picnic table and fire ring, and the park maintains clean restrooms and hot showers for all registered visitors.
Nearby Attractions & Things to Do
Fishing is the main draw here, with anglers pursuing massive cutthroat-rainbow hybrids and brook trout. Beyond the water, the park serves as a gateway to the West Entrance of Yellowstone National Park, located just 15 miles to the east. Travelers can also explore the diverse wildlife of Harriman State Park or enjoy floating the nearby Henrys Fork of the Snake River. The surrounding national forest land offers endless miles of hiking and ATV trails for those seeking land-based adventures.
Who This Park Is Best For
Henrys Lake is an ideal choice for passionate anglers and nature photographers who appreciate quiet mornings and mountain vistas. It is a fantastic fit for RVers who prefer the natural beauty and spaciousness of a state park over the crowded atmosphere of private commercial resorts. Because of its proximity to Yellowstone, it is also a strategic choice for national park enthusiasts who want to avoid the congestion inside the park while still staying close enough for easy day trips.
Amenities
- Recreational Facilities
- Policies
- Other Amenities & Services
- Recreation Nearby (within 10 miles)
- Facility
- Internet
- On-Site Rentals
- Sites
User Reviews
Anna Scott
Close to the town of West Yellowstone, but actually over the state line into Idaho. A peaceful lake area with walking trails and camp sites. We loved our quiet morning exploring Henry's Lake State Park! Saw some gorgeous birds and other wildlife on our visit as well.
Tan. T.
We spent about two hours at Henrys Lake with our kids (ages 2–11) and absolutely loved it. The lake is stunning, with sparkling waters framed by a breathtaking mountain backdrop. From the moment we arrived, the welcoming staff at the entrance made our visit even better, offering helpful tips on what to see and do. The park is very well managed and organized, with clean restrooms (though without running water), a spacious RV park, plenty of picnic sheds, and well-maintained campsites. One word of caution—be aware that the lake has leeches. Our 5-year-old had a brief leech encounter while playing in the water, which was quickly handled but worth keeping in mind if you’re wading or swimming. Overall, it’s a beautiful, peaceful, and family-friendly spot—perfect for a quick visit or a longer stay. Highly recommended!
Garan Geror
Great picnic, lake recreation place. There is a campground with mini cabins and camping sites. They have fishing, kayaking , boating , swimming , picnic table pavilions as well. The beach is rocky with lots of very cool rocks on the shoreline. The water was clear and nice to walk in. The rocks are very small so it’s easy with water shoes. We ate lunch here and played in the water with the kids. We did not go in the campground, but it looked very nice. The staff at the booth was very friendly and eligible. It did cost dollars for a day pass (cheap) . There are restrooms available plus a handicap accessible picnic area. The views are amazing as the lake is surrounded by mountains and fields of sage brush which smells amazing. As you pull in, there is large field of kettle down in the valley, but the mountains in the background. Definitely worth a stop. They have kyack rentals as well. There is a nice boat launch as well, with fishing pole rentals.
Rachel O
We rented a cabin for the night. Didn't have any problems. Bring bug spray. Mosquitoes love it here. Good sized lake. Fishing, boating etc... happens here. The bathroom and showers were clean. Easy check in and out. Very quiet and peaceful.
Sean Hlousek
Beautiful State Park with great Lake views, a large boat ramp, picnic spots, a few hiking trails and a short bike path. Staff is very friendly and knowledgeable of the area. Campground has clean bathrooms, hit water and showers. They are cleaned daily. Trash is picked up daily from 7:00-9:00 Am, just leave in a bag at your campsite sign. Firewood is expensive so bring plenty! Fishing is excellent, but that means the bugs are also very thick so bring netted enclosures and plenty of spray 30 minutes to West Yellowstone entrance but there will be a wait to get in. Go before dawn to avoid this. Watch for wildlife on the road!! Like REALLY watch it. Don't speed and at night I'd suggest going at least 5 under.