The Grand Canyon National Park document summarizes the history, climate, wildlife, activities, and filming locations of the park. It describes how the park allows visitors to see some of the oldest rocks and fossils on Earth dating back 1,700 million years. The park receives over 4.5 million visitors annually who can enjoy activities like hiking, mule rides, and scenic spots while experiencing the desert landscape and observing more than 1,000 animal species and 300 bird species that call the canyon home. Famous films like "The Lone Ranger" have also used the canyon's unique formations as backdrops.