Snowfall and chilly weather have turned late June into a surprising winter scene in Yellowstone and surrounding mountain areas. A late wave of winter weather from Canada dumped fresh snow across ...

Spread across three states, any eruption from this supervolcano could have catastrophic effects on surrounding areas. However, new research has uncovered a surprising shift in the location of ...

It's very unlikely to happen in our lifetimes, but if the Yellowstone supervolcano were to erupt, scientists think the results could have a major impact on the surrounding areas. It could spread ...

Wildlife officials have documented seven grizzly bear encounters resulting in injuries so far this year in the Yellowstone region.

This is the conclusion of a new study by researchers from the United States Geological Survey (USGS) which probed the crust beneath Yellowstone National Park and the surrounding area.

They scattered 133 seismographs across a 250-acre region surrounding Old Faithful to measure the tiny vibrations the water and steam make as they move underneath the geyser.

That has allowed the research team to build a three-dimensional map of the molten material underneath Yellowstone and to determine the fraction of the material in a given area that's molten.

A red flag warning has been issued for Yellowstone County and much of the surrounding area on Monday from 3 p.m. to midnight.

YELLOWSTONE volcano is slowly creating a new thermal area beneath the surface as the region shows more evidence it is still very much alive.

A series of “hidden” geological hazards has been uncovered in the northern reaches of Yellowstone National Park, including active faults that could pose earthquake threats to communities in ...

JACKSON HOLE, Wyo. — Wildlife officials have documented seven grizzly bear encounters resulting in injuries so far this year in the three-state greater Yellowstone region, an increase compared ...

JACKSON HOLE, Wyo. (AP) — Wildlife officials have documented seven grizzly bear encounters resulting in injuries so far this year in the three-state greater Yellowstone region, an increase ...