Research Indicates Annual Precipitation Might Control Yellowstone National Park's Geysers
![](https://www.nationalparkstraveler.org/sites/default/files/styles/npt_square2/public/default_images/npt_icons_0.png?itok=8J64sZS9)
The eruptive fury of Yellowstone National Park's geysers, those wonderful spouters of steam and hot water, seems to be determined by annual precipitation in the park, according to a study published in the journal Geology.