Yellowstone National Park sits atop one of the most studied volcanic systems on Earth, and the question of what a full-scale ...

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 ...

Over the last 10 years or so, I’ve featured numerous articles about the Yellowstone supervolcano. We know that it is located practically in our backyard and any changes related to hydrothermal or ...

Left: A Yellowstone National Park team member uses a long grabber pole to remove a park map, presumably blown from a visitor's hand or pack by the wind, from a thermal feature. Right: A Yellowstone ...

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 weekly column written by scientists and collaborators of the ...

The breathtaking beauty of Yellowstone National Park and its stunning hydrothermal features may have you exclaim: "Hold on to your hats!" The U.S. Geological Survey asks you to take that literally.

28 July 2026 – 5 days for US$4,995* per person (*based on 2025 prices, subject to increase). Step into one of the most wildlife-rich landscapes in the continental US, the iconic Lamar valley of ...