| Hydrothermal (hot water) features at Lassen Volcanic National Park fascinate visitors to this region of northeastern California. Boiling mudpots, steaming ground, roaring fumaroles, and sulfurous gases are linked to active volcanism and are all reminders of the ongoing potential for eruptions in the Lassen area. Nowhere else in the Cascade Range of volcanoes can such an array of hydrothermal features be seen. Recent work by scientists with the U.S. Geological Survey (USGS), in cooperation with the National Park Service, is shedding new light on the inner workings of the Lassen hydrothermal system. -- Clynne, et.al., 2003 |
