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About Island Park Reservoir
This lake is formed from the Henry's Fork of the Snake River. It is a beautiful lake surrounded by lodgepole pine trees, with fantastic fishing, and located only about 60 miles north of Rexburg. This large reservoir is popular for boating, fishing and water skiing. Visitors may drive across the top of the dam for scenic views of the Centennial Mountains and Box Canyon.Island Park Reservoir's body of water covers 8,400 acres. Boat ramps/docks are located at Buttermilk Campground, Island Park, Lak
Island Park Reservoir stands as one of Idaho's most scenic recreational destinations, offering RV travelers an exceptional mountain camping experience in the heart of the Targhee-Henry's Fork region. This sprawling reservoir, surrounded by dense coniferous forests and dramatic volcanic landscapes, provides the perfect setting for those seeking adventure, relaxation, and natural beauty in equal measure.
The reservoir itself is the centerpiece of the experience, stretching across the landscape with crystal-clear waters that reflect the surrounding peaks and pine forests. The area is renowned for its exceptional fishing opportunities, particularly for cutthroat trout and brook trout. Anglers of all skill levels find success here, whether casting from the shoreline, launching a boat, or wading into the cool mountain waters. The fishing season draws enthusiasts from across the region, and many RV campers plan their trips specifically to take advantage of these outstanding opportunities.
Beyond fishing, Island Park Reservoir is an ideal basecamp for exploring the greater Yellowstone ecosystem and Henry's Fork area. The reservoir's location provides convenient access to some of Idaho's most stunning backcountry. Hiking trails wind through the surrounding forests, offering everything from gentle walks with valley views to challenging mountain treks with panoramic vistas. Wildlife viewing is abundant throughout the area, with opportunities to spot elk, moose, bison, and numerous bird species. The ecosystem here is vibrant and diverse, creating an immersive nature experience that feels genuinely remote.
The region's volcanic geology adds a unique character to the landscape. Ancient lava flows have shaped the terrain, creating interesting rock formations and unique vegetation patterns. This distinctive landscape appeals to geology enthusiasts and nature photographers who appreciate the area's dramatic natural features and constantly changing light.
Island Park Reservoir serves as an excellent gateway for visitors planning to explore Yellowstone National Park, which lies relatively nearby. The area offers a quieter, less crowded alternative to the park while maintaining easy access to its attractions. Many travelers use the reservoir as their primary camp, taking day trips into the park and returning to their comfortable RV sites.
The community aspect of camping here is equally appealing. Fellow RV travelers tend to be outdoor enthusiasts who enjoy sharing tips about fishing spots, hiking trails, and local discoveries. The shared passion for this beautiful mountain environment creates a welcoming camping community atmosphere.
Summers at Island Park Reservoir are mild and pleasant, with warm days and cool mountain nights that make for comfortable sleeping. The area experiences a genuine winter season, so planning your visit during the warmer months is essential for RV camping. Spring and fall offer beautiful shoulder season opportunities, with fewer crowds and stunning seasonal colors in the surrounding forests.
Whether you're an avid angler, a nature lover, a hiking enthusiast, or simply someone seeking a peaceful mountain retreat, Island Park Reservoir offers a rewarding RV camping experience that combines outdoor recreation with the serene beauty of Idaho's high country.
Park Details
Tips & Tricks
Book Early
Island Park is popular during peak season. Reserve 2-4 weeks in advance for weekends and holidays.
Check-in Time
Most parks have check-in after 1:00 PM and check-out by 11:00 AM. Call ahead if you'll arrive late.
Local Weather
Idaho weather can change quickly. Pack layers and check the forecast for Island Park.
Explore the Area
Don't miss local attractions near Island Park. Ask the camp host for hidden gems and trails.