Yellowstone National Park's nearly 3,500 square miles seep slightly across state borders into Montana and Idaho, but its major attractions are contained in the northwest corner of Wyoming.

Yellowstone National Park is a popular destination for geology field trips. It’s easy to see why—the dynamic landscape ...

Yellowstone's magma system shows new activity, with the northeast sector possibly hosting future volcanic activity.

Though the volcano’s magma chambers could hold enough material for a caldera-forming event, none of them are likely to erupt ...

A number of studies have given us fascinating images showing Yellowstone’s magma reservoirs. But how are those images created ...