Ashfall Fossil Beds State Historical Park
Ashfall Fossil Beds State Historical Park is a unique paleontological site located in northeastern Nebraska. The park is famous for its remarkable concentration of fossilized skeletons of ancient animals, including rhinoceroses, camels, horses, and birds, preserved within a volcanic ash layer from a massive eruption of the Yellowstone supervolcano around 12 million years ago. The fossils are exceptionally well-preserved, and ...