In this episode, we go back to the Ice Age to a site near Dinosaur Ridge where a Columbian mammoth grave is rapidly being surrounded by a new housing development. And we go oven further back in time to the days when crocodilians inhabited Colorado waterways, including one at Dino Ridge- long before the Rocky Mountains uplifted. The state's ever-changing plant and animal history has left a treasure trove for paleontologists to study.