Lonely Planet Yellowstone & Grand Teton National Parks
"Whatever your interests, some experiences are destined to become shared memories – the taste of s’mores over a campfire, wrinkled noses at the smell of sulfurous steam and the electrifying thrill of hearing your first wolf howl." - Lonely Planet Yellowstone & Grand Teton National Parks by Lonely Planet, Bradley Mayhew, and Carolyn McCarthy