It's not the geothermal geysers, bears, or bison, but this one safety concern in Yellowstone National Park claims more lives ...

Yellowstone, home to many supervolcanoes on Earth, has shown some underground movement for the first time in 160,000 years. Scientists have detected magma moves, which have caught many’s attention and ...

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 ...

Formed over thousands of years of erosion caused by hydrothermal activity ... from 800 to 1,200 feet deep and features multiple falls that cascade down the Yellowstone River, including the ...

Yellowstone’s mesmerizing hydrothermal features and spectacularly varied landscapes make it abundantly apparent why the land should be protected. As a plaque near the park’s Madison ...

The gorgeous colors of Yellowstone National Park's Grand Prismatic hot spring are among the park's myriad hydrothermal features created by the fact that Yellowstone is a supervolcano -- the ...

Formed over thousands of years of erosion caused by hydrothermal activity ... from 800 to 1,200 feet deep and features multiple falls that cascade down the Yellowstone River, including the ...

Yellowstone's volcanic activity is waking up after 160,000 years. Learn how scientists are monitoring and preparing for ...

Yellowstone National Park is a popular destination for geology field trips. It’s easy to see why—the dynamic landscape ...

This is an aerial view of Biscuit Basin in Yellowstone National Park, showing debris deposited by the July 23, 2024, hydrothermal explosion from Black Diamond Pool. Major features are labeled.

Tourists at Yellowstone ran for cover as rocks fell from the sky following the explosion. The park said it did not reflect a change in the region’s volcanic system. Photo: Vlada March/National ...

They also led to the formation of the present caldera, which characterizes the physical features of the Yellowstone National Park. While such large-scale eruptions are comparatively infrequent, other ...