A new hydrothermal pool has been discovered in Yellowstone National Park, an area world-renowned for its geysers, hot springs and steamy terrain. "Geologists from Yellowstone National Park were ...

A Yellowstone National Park bison stampede is an awesome display of power and even grace as the colossal animals gallop ...

Grizzly bears in Yellowstone National Park are waking up and most roads will open to automobile traffic next month, which means prime bear-viewing season is just around the corner. With this in mind I ...

Yellowstone's volcanic past reveals a dynamic system of repeated caldera-forming eruptions and smaller lava flows, with magma ...

New research in Yellowstone National Park has found a connection between earthquake swarms and the chemical reactions needed to sustain ...

Tens of millions of bison once roamed North America, grazing on grasslands, forests and plains, from the Great Basin of Nevada to the Atlantic coast. It is difficult today to imagine the size of herds ...

Scientists debunk decades-long study claiming wolves' reintroduction triggered a dramatic transformation in Yellowstone.

A certified arborist with more than two decades of landscaping and tree care experience has been named the leader of the new ...

Bears in Yellowstone National Park are hibernating, but during the summer they were spread across the landscape and often visible from roads and trails. But they weren't always easy to see, and one ...