This completely revised popular field guide describes in detail each of the more than three hundred geysers of Yellowstone National Park. With data current to 1994 and twenty-four new photographs, Geysers of Yellowstone is designed as both a reference work and a fine introduction to the nature of geyser activity for the newcomer to geothermal phenomena. A glossary of key terms is provided, and a comprehensive appendix discusses other geyser areas of the world. Detailed maps accompany each geyser basin described, and tables are provided for ready reference.