Geologists discovered a new blue water spring at Yellowstone National Park that likely formed after a series of "mildly explosive events," the United States Geological Survey said. The hole is about ...

The dominant rock type in the Yellowstone region is rhyolite, and that is very rich in silica. As hot water circulates underground, it can dissolve that silica and bring it to the surface, where it is ...

Who would have thought that a neonatal hot spring would pop up so surreptitiously in an area renowned for geology fireworks? But during April 2025, geologists on a regular maintenance run through ...