With an informal Q-and-A format and fun, informative language, this book brings the often-esoteric science of geology into the hands of rock climbers. Covering topics that range from how to use a geologic map to find new crags, to why Europe has the best limestone, to how El Capitan's North America Wall got its name, this book has a fact for every climber's ponderings. Professional- quality photographs of worldwide climbing destinations and easy-to-read artist renderings of geologic concepts accentuate the text. For most climbers, curiosity about rocks comes as naturally as their desire to climb them.