The best times to visit Yellowstone National Park are from late April to May as well as September through early October. These shoulder months offer mild weather, fewer crowds and little to no road ...

Yellowstone National Park is a popular destination for geology field trips. It’s easy to see why—the dynamic landscape ...

Yellowstone National Park's nearly 3,500 square miles seep slightly across state borders into Montana and Idaho, but its major attractions are contained in the northwest corner of Wyoming.

Yellowstone's magma system shows new activity, with the northeast sector possibly hosting future volcanic activity.

The chief scientist of the Yellowstone Volcano Observatory, Dr. Michael Poland, says he's not worried about an imminent eruption of the volcano under Yellowstone National Park.

MISSOULA, Mont. — A 3.9 magnitude earthquake was recorded near Norris Geyser Basin in Yellowstone National Park on Tuesday ...

A number of studies have given us fascinating images showing Yellowstone’s magma reservoirs. But how are those images created ...