A gigantic bulge in the north rim of the Yellowstone caldera is the latest sign of volcanic activity in the national park.

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 ...

Yellowstone National Park's restless ground has captured attention once more, as subtle shifts beneath its steaming landscapes signal the planet's inner workings. After years of stability, a zone ...

Yellowstone is a dynamic geologic system—the one constant is change. This is demonstrated daily by hydrothermal activity ...

Geologists discovered a new blue water spring at Yellowstone National Park that likely formed after a series of "mildly explosive events," the United States Geological Survey said. The hole is about ...

The same geyser that erupted last summer in a hydrothermal explosion in Yellowstone National Park was recorded erupting again, video shows. “Small eruption from Black Diamond Pool, site of a ...

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

The same geyser that erupted last summer in a hydrothermal explosion along a Yellowstone National Park boardwalk was caught erupting on video again thanks to a newly-installed webcam to track the ...