Where Does the Yellowstone River Start and End?

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The Yellowstone River, a majestic 671-mile (1080 km) watercourse renowned for its beauty and vitality, embarks on a remarkable journey that captivates both nature enthusiasts and adventure seekers alike.

As the longest undammed river in the lower 48 states, the Yellowstone River flows through breathtaking landscapes, carving a path that features exhilarating whitewater adventures on its way to the mighty Missouri River.


Yellowstone Headwaters: A Humble Mountain Stream

Starting on Yount Peak in Wyoming, the Yellowstone River begins as a small stream and grows in size as it’s fed by several tributaries throughout the park. 

Flowing into Yellowstone National Park, the river meets Yellowstone Lake and meanders through the incredible natural wonders of Hayden Valley, the Upper and Lower falls of the Grand Canyon, Tower Falls, and Black Canyon.


Whitewater Transformation in Gardiner

As it leaves the boundaries of Yellowstone National Park, the river builds momentum, setting the stage for whitewater fun that awaits downstream.

When it reaches Gardiner, Montana, located at the North Entrance to Yellowstone, the river’s character transforms into the perfect setting for thrilling adventures. 

This 18-mile stretch beckons adventurers seeking the heart-pounding excitement of Yellowstone whitewater rafting.


Rafters floating through the Paradise Valley, are treated to breathtaking vistas of towering peaks, verdant landscapes, and the untamed beauty that defines Montana.


Winding Its Way to the Missouri River

The remaining journey of the Yellowstone River covers roughly 500 miles through the riverside towns, and sweeping beauty of eastern Montana. It eventually joins the iconic Missouri River, contributing its waters to a vast network that winds its way through the heart of America.


Yellowstone River in Billings, Montana 

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Ready to create your own chapter of memories and excitement on the beautiful Yellowstone River? Experience the pure joy of connecting with nature’s most captivating wonders.

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