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The Greater Yellowstone Area is the only remaining large biologically intact temperate ecosystem in North America, comparable in size and diversity to Africa’s Serengeti!Learn More

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Island Park / Ashton

Located in the heart of the Greater Yellowstone Ecosystem, Island Park offers opportunities to get outside, explore, and connect with the natural world. The same natural forces that made Yellowstone so scenic have made Island Park similarly beautiful. Upon leaving the agricultural Upper Snake River Valley outside of Ashton, you'll actually drive up the edge of an ancient collapsed volcano.

The heart of Island Park is Harriman State Park, which is comprised of pristine forest land and high-country meadows located in the center of a 16,000-acre wildlife refuge. The park is a haven for trumpeter swans, numerous waterfowl, elk, deer, and other wildlife. The world famous fly-fishing stream, the Henry's Fork of the Snake River, winds through the meadows of the refuge. Visit the park to enjoy fishing, hiking, mountain biking, horseback riding, cross-country skiing, snowshoeing, and other activities.

Drive the Mesa Falls Scenic Byway for stunning views, and be sure to stop at Mesa Falls itself to take in the breathtaking waterfalls. The Caribou-Targhee National Forest offers abundant opportunities for hiking, camping, snowmobiling, cross-country skiing, snowshoeing, and other activities. Guides and outfitters are available to help guide your exploration year-round. 

Island Park has a selection of cabins, inns, and campgrounds that provide easy access to Yellowstone National Park, Grand Teton National Park, Caribou-Targhee National Forest, and beyond. It’s located only about 80 minutes from Yellowstone’s Upper Geyser Basin, which contains over 300 active geysers, including the classic American wonder, Old Faithful. This geyser shoots naturally hot water out of a vent in the earth’s crust, erupting every 45 to 125 minutes.

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