Wildsam Field Guides: Yellowstone explores our first national park and the lands that surround it: a trove of American history and one of the world's most vital natural habitats. Insight from local experts, guides and scientists reveals profound volcanic forces, America's greatest bison herds, wolfpacks, and a human story stretching back thousands of years. From famed geysers to deep backcountry to lore-steeped Western characters, Wildsam Yellowstone wanders far through the place once called "Wonderland."