Spring is the best time to visit Yellowstone National Park. Here are just five reasons why this national park is the perfect ...

Yellowstone National Park's nearly 3,500 square miles seep slightly across state borders into Montana and Idaho, but its major attractions are contained in the northwest corner of Wyoming.

The Yellowstone River flows from the heart of Yellowstone National Park through the Paradise Valley and across Montana, doing its part to fuel a $5.45 billion tourist economy in the state. If we don’t ...

How do volcanologists determine the height of eruptive plumes from Yellowstone’s past explosive eruptions? Ironically, you ...

Yellowstone National Park is a place where steam rises from the earth and geysers erupt like clockwork. Parameters were established in 1872. This is the first national park in the world, and it is ...

Ski-Doo snowmobiles are the only ones approved for Yellowstone, and thousands of them traverse the national park every winter ...

Geologically speaking, things are always changing at Yellowstone — especially in hydrothermal areas. It’s simply the nature of the complex hydrothermal system overlying one of the planet’s largest ...