Yellowstone National Park's geological history is one of the most intensely studied in North America. A new geologic unit ...

Yellowstone is America’s first national park, but it’s history may surprise you.

Map of Yellowstone National Park area, showing travelers where the best hotels and attractions are located.

Roads and one park entrance for Yellowstone National Park are set to open this Friday, weather permitting, ahead of National Park Week.

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

Underneath Yellowstone National Park, magma bubbles and flows. But exactly how close it is to the surface has long been a mystery to scientists — until now.

These two locations are: Madison River (see map): The Madison River from the Wyoming/Montana state line downstream to the park boundary near the West Entrance in West Yellowstone, Montana.

Seeing Yellowstone National Park in person is more amazing than anything you've seen on screen.

Yellowstone National Park sent out the following: Effective immediately, the partial fishing closures on select rivers and streams in Yellowstone National Park have been lifted and are now open.

Guide to the best hotels and things to do in Yellowstone National Park. Maps, travel tips and more.