Few People Know This Beautiful Natural Tunnel In Colorado Even Exists

The iconic Eisenhower Tunnel. The spooky Gold Camp Road Tunnel. The historic Moffat Tunnel. You know all there is to know about these famous Colorado structures, but did you know that the Centennial State is also home to some tunnels that are completely natural? Take for instance these beautiful, natural, and rocky tunnels that few people know even exist:

Check out even more amazing Colorado tunnels by clicking 6 Awesome Tunnels In Colorado You Need To Drive Through At Least Once.