Most tourists who visit Yellowstone National Park snap photos of Old Faithful and stroll past bubbling mud pots, never ...

The reason the region is safe is because, aside from Yellowstone being closed during the winter months, it has not yet ...

A big, messy surprise greeted Yellowstone National Park early Saturday morning, just as winter officially began. At around ...

Scientists in the United States have 'blown the lid off' the Yellowstone supervolcano's mysterious underground reservoir of magma. A team of geologists and Earth scientists now claims to have finally ...

Yellowstone National Park sits atop the world's most famous supervolcano. If it erupted, ash and molten rock would spew across much of the continental United States, devastating the country and ...

New research in Yellowstone National Park has found a connection between earthquake swarms and the chemical reactions needed ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Liv Wheeler, M.S. student, and Stacy ...

The discovery of 86,276 previously undetected earthquakes beneath Yellowstone has reignited public anxiety about the park’s ...

Get any of our free daily email newsletters — news headlines, opinion, e-edition, obituaries and more. Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the ...

The Yellowstone Caldera, a volcanically active region under and around Yellowstone National Park, has long been the subject of research, speculation and science fiction regarding the possibility of a ...

Midway Geyser Basin at Sunset, Yellowstone National Park. (Neal Herbert/National Park Service) The northwest corner of Wyoming is boiling. There, 10,000 hydrothermal features transform Yellowstone ...

Margery Price details how Yellowstone’s Geology Program takes care of the park and cleans up after the four million tourists who visit each year. Humans unfortunately tend to litter, even in beautiful ...