This fifth edition of the popular guide to Yellowstone, the world's first national park, revises descriptions of the hot springs, geysers, and wildlife viewing spots. Mile-by-mile road logs document every approach to the park and every interior road. Through charts and explanations, readers learn of Yellowstone's campgrounds and facilities, geyser basins and the frequency of the geyser eruptions, and out-of-the-way hikes. Updates include descriptions of new lodgings, scientific information reflecting recent research, 65 new color photos, and revised maps. A field guide to the animals and plants, a selected reading list, and a 21-page index round out this comprehensive guidebook.