Brush up on your knowledge of Yellowstone's geography with this interactive version of National Geographic's Trails Illustrated map Yellowstone National Park MapPlanning a Yellowstone trip?

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.

Geologically speaking, things are always changing at Yellowstone—especially in the hydrothermal areas. It’s simply the nature ...

A volcanic eruption is unlikely to occur at Yellowstone National Park because of the magma formations ... seismic data — seismic waves that can map geologic structures — to measure the magma ...

so you'll want to use an official Yellowstone map (available online or at the park's five visitor centers) or specific GPS coordinates that the NPS provides to Yellowstone visitors.

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