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Yellowstone River

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Iconic wild waters carving through dramatic canyons, waterfalls, and valleys.

The Yellowstone River flows through Yellowstone National Park, winding past dramatic canyons, lush forests, and iconic waterfalls. As the longest undammed river in the contiguous United States, it provides spectacular opportunities for sightseeing, fly fishing, and wildlife viewing. Visitors can admire its powerful cascades at the Upper and Lower Falls or spot wildlife along its banks in Hayden Valley.

Quick tip: Arrive early at key river pullouts in Hayden Valley for prime wildlife viewing and easier parking.

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More things to do in Yellowstone National Park

All things to do in Yellowstone National Park