The spectacular steam and water fountains erupting from geysers makes tourists go "ooh" and "aah," but they present a plumbing problem for scientists: What goes on underground beneath a geyser?
Boulder, Colo., USA: The Geological Society of America (GSA) is proud to announce the release of Geysers: What They Are and How They Work, Third Edition, by noted geologist and Yellowstone expert T.