It was a busy year in Yellowstone National Park, with 2025 featuring 1,136 earthquakes, the formation of new geological ...

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 ...

Geologists at Yellowstone National Park have pulled more than 300 lost hats from the famous hot springs. The headwear, estimated to be worth over $6,000, is among a range of items collected so far ...

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.

The Yellowstone Volcano Observatory, a consortium of nine regional scientific agencies, has released a new 10-year plan to improve monitoring and hazards assessment of volcanic, hydrothermal and ...

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 ...

Kablooey!” That's the word U.S. Geological Survey volcanic experts used to describe a muddy eruption at Black Diamond Pool in Yellowstone National Park on Saturday morning. Video shared by the USGS on ...

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 ...