It's common knowledge that Yellowstone Park sits on top of an ancient supervolcano, but what happened last time it erupted?

Yellowstone National Park has a new thermal vent spewing steam in the air that could be visible to tourists once visitors ...

The Yellowstone supervolcano is a vast reservoir of magma with the potential to unleash a category eight eruption over 100 ... the Roadside Springs thermal area. Lying within a swath of warm ...

A new column of steam rises from Yellowstone. While the expansive volcano shows no hints of an eruption, magma brews beneath the surface, fueling hundreds of geysers and other heated phenomena.

A new thermal vent spewing steam in the air at Yellowstone National Park is gaining attention, mainly because it's visible from a road rather than any significant change in the park famous for its ...

When Yellowstone's roads open to car traffic in April, tourists will be able to view the new steam column from a pullout as long as the vent remains active. It's located in an area about a mile ...