136 pp. 4.5x8 inches. 143 color illustrations; 14 maps; diagrams and b&w illustrations; glossary; bibliography; index; trade paper. JUST RELEASED NEW EDITION. The best selling comprehensive guide to the geysers, hotsprings, fumaroles and mudpots of Yellowstone National Park (including a section on New Zealand and Iceland’s geysers and thermal features). Each geyser, hot spring or fumarole is beautifully illustrated with a color photograph and a descriptive narration that includes its history, eruptive cycles and its physical attributes. An appendix to predict eruptions of Old Faithful Geyser is included.