Weird Wyoming Facts That You Will Doubt

Fact or fiction, hard to tell sometimes. So let's look at a few items about Wyoming that sound fake but, in fact, are facts.

Two Ocean Pass: North Two Ocean Creek in the Teton Wilderness actually does split, with one half going east and the other going west. Half the water will end up in the Pacific the other half will go to the Atlantic.

Heart Mountain Slide: This is a big one, and it would have been fun and deadly to see it in person. 50 million years ago, a mountain slab larger than Rhode Island slid across Wyoming at over 100 mph on a cushion of superheated CO2 gas, defying geological physics.

That last one sounds impossible. Watch the video below to see how geologists know that this happened.

Yellowstone’s Supervolcano: Beneath Yellowstone lies a 45-by-30-mile supervolcano. It is thought to have last erupted 640,000 years ago.

Singing Sand Dunes: The Killpecker Sand Dunes, spanning 109,000 acres, produce an eerie low-frequency hum when the wind moves the sand. In the middle of all of that sand, a 400-foot volcanic spire, Boar’s Tusk, rises from them.

Sinks Canyon River: This one is fun to see in person. The Middle Fork of the Popo Agie River vanishes into a cave in Sinks Canyon, reappearing a quarter-mile downstream. But it is not a straight wash through. Many studies have been done, and nobody can really figure out the tru pathway of the water.

Devils Tower Name Mistake: Notice that you do not see an apostrophe in "Devil's". That was a typo when the name of the tower was officially registered. It has never been corrected.

Rare Archaeopteryx: Thermopolis’ Wyoming Dinosaur Center houses the only authentic Archaeopteryx fossil outside Europe, a 150-million-year-old link between dinosaurs and birds.

Oldest Dinosaur: In 2025, Wyoming revealed North America’s oldest dinosaur, Avedom bond duaviche, a 230-million-year-old feathered species named in Shoshone, rewriting dinosaur history.

Great Divide Basin: In the Red Desert of Wyoming, the water never reaches any ocean. The Continental Divide splits, creating a 4,000-square-mile basin where water never reaches an ocean, evaporating or forming ghost lakes.