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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,…

  • Managed by: USDA Forest Service
  • Coordinates: 44.42, -111.397

Nearby & related campgrounds

  • Box Canyon Boating Ramp
  • Box Canyon Trailhead
  • Island Park Boating Site
  • Buttermilk Boat Ramp
  • BUFFALO (IDAHO)
  • BUTTERMILK

Frequently asked questions

Is Island Park Reservoir reservable?

Island Park Reservoir is primarily first-come, first-served. Use the availability view to gauge how busy it is before you go.

Where is Island Park Reservoir?

See the map for Island Park Reservoir's exact location and directions.

How do I book a campsite at Island Park Reservoir?

Pick your dates on the availability calendar, then reserve through the official booking link. You can also set an alert and we'll notify you if a sold-out date opens up.

Check campsite availability