Discover Yellowstone National Park, the geological crown jewel of the United States, home to the famous Grand Prismatic ...

The Midway Geyser Basin's Grand Prismatic Spring is the largest hot spring in Yellowstone and one of the largest hot springs in the world. Measuring approximately 370 feet in size and around 121 ...

A detailed look at Yellowstone's magma storage system finds that only one region is likely to host liquid magma in the long ...

"This number is based simply on averaging the two intervals between the three major past eruptions at Yellowstone—this is ...

The beating heart of Yellowstone National Park is without a doubt the Grand Prismatic Spring—the largest hot spring in the U.S. Its colorful bands are the product of hardy bacteria and algae ...

This Yellowstone National Park one day itinerary takes you to all the park's highlights including Old Faithful and Grand ...

An expert from the Yellowstone Volcano Observatory has revealed some of the most likely impacts of an eruption in the famed national park.

Yellowstone supervolcano ’s last eruption covered most of what is now the USA in volcanic ash and lava that flowed for ...

Things are getting hotter than a Dutton family feud. Yellowstone National Park, known for erupting geysers like Old Faithful, is home to one of earth’s largest volcanic systems, with the ...

Editor’s Note: This story accompanies the May 2016 issue of National Geographic magazine, devoted entirely to America’s first national park. Find more at natgeo ...

A Wildlife Photographer of the Year captures the paradox of the park. 9 min read Michael Nichols is one of six photographers who contributed to National Geographic magazine's special issue on ...

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 ...