Thanks to Colorado's first-of-its-kind wildlife overpass and underpass system, animlas are able to safely cross Highway 9. Researchers have recorded thousands of successful movements of animals including mule deer and elk using the crossing structures. Sometimes animals are hesitant to use a crossing structure. In this series, a group of elk are learning to use an underpass by following deer. Learn more: https://cpw.state.co.us/hwy9 | Colorado Parks and Wildlife