A Geologic Masterpiece

The Wind River Canyon Scenic Byway begins in the town of Shoshoni and follows U.S. 20 north through Wind River Canyon and the Wind River Indian Reservation ending just south of Thermopolis. Without stopping, the total drive time is about 40 minutes. The 2,500 foot-deep canyon is a feast for the eyes with the oldest layers of rock dating back to the Precambrian era, over 2.5 billion years ago. Highlights include Boysen State Park, the Owl Creek Mountains, the Wedding of the Waters and the Bighorn River.

Explore the area surrounding the Wind River Canyon Scenic Byway and beyond on the Boysen Reservoir Driving Tour.

Boysen Dam

Asmus Boysen had a dream and a fortune. To power his dream, he built a dam using mule teams near where the first highway tunnel bores its way into Wind River Canyon. The year was 1908 and Boysen used the dam to produce 710 kilowatts of power for his copper and gold mine on nearby Copper Mountain. The dam produced the power well enough, but there was a problem. The lake that formed behind the dam flooded the railroad tracks. Mighty Burlington Northern sued Boysen to remove the dam.

Boysen lost the lawsuit, his fortune, his dam and his dream. The dam came down, though concrete abutments are still visible along the river. If you stop off to have lunch beneath the stately cottonwood trees or Upper or Lower Wind River Campgrounds, thank that dreaming Dutch immigrant Asmus Boysen for the shade. His dam created enough silt for the cottonwoods to get a toehold on the rocky shores of the river.

Follow the Moments That Make Wind River Country


See Wind River Country as it happens, on the trail, in town and out on the land. Follow along for real moments from real people, and share your own journey by tagging @windrivercountry.

Wondering what kind of personality Wyoming has? This sums it up. 🤠 Photo: David Rule #ThatsWY #WindRiverCountry #Wyoming
“Autumn is a second spring when every leaf is a flower.” -Albert Camus Photo: Scott Copeland #WindRiverCountry #Wyoming #ThatsWY
Fall was made for fly-fishing in Wind River Country. Photo: Davis Clem #WindRiverCountry #Wyoming #ThatsWY
If you're looking for authentic Wyoming charm, make your way to Dubois. 🏔️ Surrounded by the Wind River and Absaroka Mountains, this small town is packed with history, outdoor adventure and incredible views. While you're here, stop by the National Bighorn Sheep Center and the National Museum of Military Vehicles and enjoy easy access to Grand Teton and Yellowstone National Parks. Learn more in our bio. Photo: Brady McLean #WindRiverCountry #Wyoming #ThatsWY #Dubois #DuboisWY
We love fall colors...who else is ready? Photo: Scott Copeland #WindRiverCountry #Wyoming #ThatsWY
Sometimes all you need is a change of scenery. 🌄 Wind River Country is waiting. Photo: Davis Clem #WindRiverCountry #Wyoming #ThatsWY