Learn more about the past eruptions at Yellowstone National Park and how each new eruption displaced evidence of the past.

This photo shows the exposure of the Mount Jackson Rhyolite Series vitrophyre at Gibbon River. Boulders of weathered, lichen-covered rock show how easy it is to overlook these new units. (Photo by Liv ...

Scientists are monitoring a city of Chicago-sized swath of rising ground at the northern volcanic rim of the Yellowstone ...

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 ...

U of U geology professor Robert B. Smith has made a 50-year career out of studying Yellowstone. He presents a lecture on the Yellowstone Supervolcano Wednesday, March 18, at 7:30 p.m. at the Skaggs ...

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

There’s rarely a quiet moment in Yellowstone. With constantly shifting geology and ever-bubbling hot springs, this sprawling landscape across Wyoming, Montana, and Idaho is no stranger to underground ...

Yellowstone National Park is known for its beauty and natural elements — like geysers and thermal pools — which bring millions of people to the park each year. But, those people owe all the majesty of ...

Videos of animals appearing to flee Yellowstone National Park have gone viral, leading to speculation that the park’s infamous “supervolcano” may be about to blow. Climate website Green Matters ...