From Stegosaurus to Triceratops — The Dinosaurs That Made Colorado Famous
Colorado has one of the richest dinosaur legacies in the entire country, with fossils discovered across the state from Morrison to the Western Slope. Long before it became famous for its mountains and ski towns, Colorado was home to vast plains and swamps where enormous creatures roamed. The state’s official fossil, the Stegosaurus, was first discovered near Morrison in the late 1800s and remains the most iconic prehistoric symbol of Colorado’s past. Generations of paleontologists have since uncovered hundreds of fossilized bones, tracks, and impressions that help tell the story of what life was like here more than 150 million years ago.
The 5 Most Common Dinosaur Fossils Found in Colorado
Stegosaurus – The state fossil and one of the most recognizable dinosaurs in the world, first found in Morrison. With its distinctive back plates and spiked tail, this plant-eater dominated the Jurassic landscape.
Apatosaurus – One of the first long-necked giants discovered in Colorado, Apatosaurus fossils were unearthed at Dinosaur Ridge. Its massive size and gentle nature made it a fascinating herbivore of the Morrison Formation.
Allosaurus – A fierce predator that roamed millions of years before the T. rex. Though smaller, it was quick, deadly, and left behind fossils throughout Colorado’s Front Range.

Triceratops – With its three horns and large frill, this dinosaur has captured imaginations for decades. Fossils have been found along the Front Range, showing it once grazed the same lands where Denver now stands.

Duck-billed Dinosaurs (Hadrosaurs) – Known for their flat, duck-like snouts, these gentle herbivores left behind thousands of fossilized tracks across Colorado. Many of their footprints are still visible today at Dinosaur Ridge.
From the sandstone cliffs of Morrison to the fossil beds near Canon City and Fruita, these discoveries reveal how Colorado once teemed with prehistoric life. Today, visitors can still walk in the footsteps of giants and experience a deep connection to a time when dinosaurs ruled the land.











