By Yellowstone Forever. An indispensable resource for Yellowstone visitors. Newly updated guidebook provides information to assist with all aspects of your trip, from reservations to road maps to recommended activities. The guide will explain Yellowstone's human and geologic history, providing information on the natural features with guidance on how to view the free-ranging wildlife and geothermal features safely. Along with a map of the entire park, the guide also includes an easy-to-use field guide section which contains color photos and descriptions of many of the park's most common mammals, plants, wildflowers and birds. 93 pages.