Scientists are monitoring a city of Chicago-sized swath of rising ground at the northern volcanic rim of the Yellowstone ...
Yellowstone’s restless ground is on the move again. Since July 2025, instruments on the park’s north rim have recorded ...
A caldera—like the one at Yellowstone Park spanning parts of Wyoming, Idaho and Montana—is a large depression or hollow formed when a volcano erupts and the magma chamber beneath it empties, leading ...
Yellowstone is a dynamic geologic system—the one constant is change. This is demonstrated daily by hydrothermal activity ...
“Yellowstone is a dynamic geologic system – the one constant is change.” So wrote Michael Poland, a geophysicist with the US ...
Learn more about the past eruptions at Yellowstone National Park and how each new eruption displaced evidence of the past.