Last April, geologists conducting routine maintenance at temperature logging stations in Yellowstone National Park’s Norris ...

"The discovery emphasizes the dynamic nature of Yellowstone's thermal activity," Yellowstone Volcano Observatory's Mike ...

Christmas came early for geologists at Yellowstone National Park this April when a regularly scheduled survey resulted in ...

Yellowstone National Park, renowned for its geothermal features and volcanic history, is beginning to show signs of renewed ...

Yellowstone National Park geologists identified a new thermal feature in Norris Geyser Basin. It may have coincided with a ...

Get ready for a little Christmas in July: There’s a new baby blue pool in Yellowstone National Park, and science suggests it started forming on the winter holiday.

A 13-foot-wide hot pool formed over the winter in one of Yellowstone’s most active areas, and it could offer new insights ...

Learn about the new hydrothermal feature that appeared last winter in Yellowstone National Park, possibly on Christmas Day.

A supervolcano is located at Yellowstone National Park. Here's what happens to North America and the rest of the world if Yellowstone erupts.

View looking northwest at a new thermal pool in the Porcelain Basin area of Norris Geyser Basin, Yellowstone National Park, that probably formed in a series of mildly explosive events between late ...

Dennis McDonald, 81, has received a myriad of visitors to his Open Spear Ranch, a sprawling quarter horse and cattle ...

The national parks are more crowded—and less staffed—than they’ve been in decades. Here’s how to plot a successful peak-season visit.