super volcano

National Park Service

Millions of people visit Yellowstone each year to see its geysers, fumaroles, hot springs, and mud pots. It's the largest concentration of thermal features in the world. The park sits on top of the world’s largest active volcano. Called the Super Volcano. Its most recent eruption was more than 600,000 years ago. All that remains is the top, or caldera.

When you come into the Park they’ll give you a map and it has an overlay of the caldera. It’s huge.

Yellowstone Denies Super Volcano Rumors

Apr 4, 2014

A video of bison running down a road in Yellowstone sparked viral internet rumors this week that the park's super volcano is about to explode. The rumors gained so much traction that Yellowstone officials felt the need to respond. Spokesman Al Nash says all is well, and that the animals were simply migrating.