• Massive petrified redwood stumps

    Florissant Fossil Beds

    National Monument Colorado

Experience the Prehistory of Colorado

Beneath a grassy mountain valley in central Colorado lies one of the richest and most diverse fossil deposits in the world. Petrified redwood stumps up to 14 feet wide and thousands of detailed fossils of insects and plants reveal the story of a very different, prehistoric Colorado.

Did You Know?

illustration of rhinocerous-like mammal

Fossil remains of a brontothere, a rhinoceros-like creature, have been found in the Florissant fossil beds. Brontotheres were enormous, with some standing over eight feet tall.