Nearly 12 million years ago, volcanic ash engulfed this ancient watering hole, entombing innumerable animals. National Geographic has called Ashfall Fossil Beds the Pompeii of prehistoric animals. Because of its scientific importance, the 360-acre historical park between Orchard and Royal was acquired in 1987 and is a joint project of the Game and Parks Commission and the University of Nebraska State Museum. See paleontologists "dig" the site and prepare fossils unearthed.