IDAHO FALLS – An avalanche warning is in effect for mountain areas near Island Park and West Yellowstone. The National Weather Service in Pocatello issued the warning just before 7:30 p.m. Sunday.

We know that a supervolcano, Yellowstone, is located practically in our backyard. The region is constantly going through geological changes, as there was a recent discovery of a new volcanic vent in ...

The Union Pacific Railroad will be replacing the railroad crossing at Ash Street in Idaho Falls. Beginning April 3, Ash Street from Eastern Avenue to Northgate Mile (Yellowstone Highway) will be ...

Formed over thousands of years of erosion caused by hydrothermal activity, water and other natural forces, the Grand Canyon of the Yellowstone is the primary attraction in the Canyon Village area ...

A park scientist noticed it about two weeks after a hydrothermal explosion along a boardwalk during the park’s overactive summer.

The child "took off running" from the trail before slipping and falling into the small thermal feature, the park reported Georgia Slater is a staff editor on the Parents team at PEOPLE. She has ...

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.

Only a few of the dots on the U.S. Geological Survey National Water Dashboard appear gray at this midpoint of March. The ...

A new thermal vent spewing steam in the air at Yellowstone National Park is gaining attention, mainly because it's visible ...

LOTS of snow and gusty winds have created very dangerous avalanche conditions in southwest Montana and parts of Idaho.