The Grand Canyon in Arizona, exposing 2 billion years of geological history. Thanks @helliiz for sharing this incredible pic with us! #gadv #regram Hotels-live.com via https://www.instagram.com/p/BCNJzrgiqjK/

The Grand Canyon in Arizona, exposing 2 billion years of geological history. Thanks @helliiz for sharing this incredible pic with us! #gadv #regram Hotels-live.com via www.instagram.com/p/BCNJzrgiqjK/ via http://flic.kr/p/Ei1uWJ