In the 1850s, members of Congress thought the stories about “Yellow Stone" were too fantastic to be true. Politicians scoffed ...

Yellowstone is a land of superlatives. Even in such an environment, the Lower Geyser Basin stands out as one of the most ...

The bulge first appeared in 1996 and has now returned, but Yellowstone Volcano Observatory says there's no cause for alarm.

Colorado might be home to some of the most iconic mountain ranges in the U.S., but ignore the Cowboy State at your peril.

More than 4.76 million people visited the park last year compared to 4.74 million in 2024, according to the National Park Service’s statistics website.

Scientists are monitoring a city of Chicago-sized swath of rising ground at the northern volcanic rim of the Yellowstone ...

This less-visited Wyoming wilderness area, known as 'The other volcanic range' in Yellowstone, is known for stunning mountain ...

“Yellowstone is a dynamic geologic system – the one constant is change.” So wrote Michael Poland, a geophysicist with the US Geological Survey (USGS) and Scientist-in-Charge at the Yellowstone Volcano ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week’s contribution is from Michael Poland, geophysicist with the ...