Stand at the edge of a massive, echoing cliff and look down into a canyon so deep it feels like looking back in time. Join a father and daughter as they hike through one of the most spectacular natural wonders of the world. With every step down into the rocky gorge, you will travel thousands of years into the past. Marvelous die cut pages allow you to peer through the rock, transforming modern day fossils back into the ancient, living creatures that once swam through prehistoric oceans and roamed across forgotten landscapes. You will encounter the diverse plants and animals that survive in the canyons extreme environments today, from the soaring birds of prey to the stealthy mountain lions. Packed with incredibly detailed illustrations and rich geological history, this sweeping exploration captures the breathtaking scale and vibrant life of an unforgettable national treasure.