Want to get the most out of your Yellowstone National Park experience? Purchase one of the many informative field guides to simplify your trip to Yellowstone. The park's official guide to hiking in Yellowstone features mileage for over 100 trails. Looking to check out the park in a day? Yellowstone in a Day offers 3 different ways to see Yellowstone with a limited time frame while still immersing in the experience. Yellowstone-Story Behind The Scenery delivers the beauty of the park through stunning photographs and details the history behind the park that has captivated so many.