Yellowstone’s geological history is one of the most intensely studied in North America. From a map drawn on a bison pelt by ...

The formation of Heart Mountain near Cody is a story of a block of rock the size of Rhode Island moving at 700 mph, an ...

Despite the impressive size of Yellowstone National Park (about 8,992 km2, or 2.2 million acres), the total surface area covered by thermal areas is only about 70 km2 (17,300 acres)—less than 1% of ...

“The heat from the Yellowstone volcano is what drives the hydrothermal system,” said Henry Heasler, the park’s geologist. “It gets hot and rises, and the magma chamber, or reservoir, is at ...

Geoscientists have discovered a magma cap at Yellowstone National Park that is likely playing a critical role in preventing a massive eruption.

Map of volcanic ashfall. Areas of the United States that once were covered by volcanic ash from Yellowstone's giant eruptions 2 million and 630,000 years ago, compared with ashfall from the ...

Spring is the perfect time to plant tomato seeds, ensuring they're ready for summer. With their wide-ranging versatility, ...

But Yellowstone's rhyolitic stores are still surprisingly small. Theoretically, they could power an eruption the size of Yellowstone's smallest caldera-forming eruption, the researchers write.

A new study on the supervolcano percolating underneath Yellowstone National Park reaffirms it’s not about to blow and end humanity as we know it. It shows… ...

Some of these sediments still exist today, capped by thick blankets of ash from caldera-forming eruptions of the Yellowstone system. This is a map of the Yellowstone caldera showing the locations and ...

Yellowstone National Park has been a site of volcanic activity for 2 million years. What did the region look like before volcanoes erupted?

This is a map showing different types of thermal areas in Yellowstone National Park. Also shown are the rim of Yellowstone Caldera, resurgent domes, and large hydrothermal explosion craters.