This revised popular field guide describes in detail each of the more than three hundred geysers in Yellowstone National Park. With updated data, <i>The Geysers of Yellowstone</i> 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 easy reference.