What visitors need to know about Yellowstone Breathtaking full-color photographs Field guide to the park's plants and animals This comprehensive handbook covers all aspects of Yellowstone National Park, from grizzlies to geysers. Readers will find fascinating accounts of Yellowstone's formation as well as expanations of today's troubling environmental issues, such as wildlife management, fires, and conservation.Yellowstone gives detailed descriptions for more than 20 fish, 70 birds, and 70 mammals found in the jpark, as well as information about the surrounding nationa parks and forests.