COMING UP: It's Thursday Night Football Blitz presented by Connect For Health Colorado, with Demaryius Thomas & Rahim Moore. Watch it on CBSDenver.com at 6 p.m. or head to the new ViewHouse Centennial to see it live!
Rocks the size of cars pushed downstream. If you’ve ever hiked or driven along a canyon in the mountains, you wonder how many eons it took to create so much erosion. The answer may not be eons at all.