S trange things are afoot in Yellowstone National Park.

Few geological scenarios capture public imagination quite like a full-scale eruption of the Yellowstone supervolcano. The ...

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

Yellowstone National Park is a place of wonder and beauty that never ceases to amaze the millions who visit each year.

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 ...

Valentine Geyser in the Norris Geyser Basin in Yellowstone National Park unexpectedly sprang to life again with 13 documented ...

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 ...

Valentine Geyser's activity in the day of love remains under wraps because of park regulations.

Nearly 5 million travelers come to Wyoming to visit Yellowstone National Park each year, most in the summer months. They come for the geysers, wildlife, scenery and recreational activities such as ...