Yellowstone National Park guide

Waterfalls, bison, and geysers: plan the ultimate trip through Montana and Wyoming

Top wow spots of Yellowstone

Waterfalls, bison, lakes, rivers, mountains, and geysers: this behemoth national park stretches through Montana, Idaho, and Wyoming

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yellowstone
Courtesy of Russell Harrison

Yellowstone River

The Yellowstone River is the force that created the canyon and the falls. It begins on the slopes of Yount Peak, south of the park, and travels more than 600 miles to its terminus in North Dakota where it empties into the Missouri River. It is the longest undammed river in the continental United States.

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