The springs, geysers and steam vents are scattered over it in the most irregular fashion.
The geysers and other hot springs are due to the same causes as the active volcanoes, and the earthquakes are probably manifestations of the same forces.
Among its virtual worlds are the Land of Oz and a model of Yellowstone National Park, complete with spouting geysers and wandering moose.
Both very hot ecosystems, such as the boiling springs near geysers, and cold polar ecosystems have been studied with this in mind.
You can watch a whole showcase of geothermal curiosities: hissing steam vents, bubbling mud pools and erupting geysers.