Catherine Parker More than its star attraction (Old Faithful), the Upper Geyser Basin boasts not only the largest concentration of geysers in the park, but also in the entire world (Yellowstone is ...

A Seattle tourist will serve one week in prison for walking off the boardwalk at Yellowstone National Park and getting too ...

There’s not a grizzly bear in Yellowstone National Park that is willing to mess with a bison herd on full alert. The accompanying footage, captured Monday via the park’s livestream camera, ...

Lightning strikes above the Fan and Mortar geysers in Yellowstone's Upper Geyser Basin. Geysers are formed when underground water meets superheated rock and blasts back out through a narrow hole.

G eyser Hill is a group of thermal features, including geysers, springs, and pools next to Old Faithful Geyser in Yellowstone's Upper Geyser Basin. Geyser Hill is a must for any Yellowstone visitor.

This new steam column can be found near Nymph Lake in the Mammoth Hot Springs area, about a mile north of the Norris Geyser Basin. It's located between a lava flow and a marsh in the Roadside Springs ...

Catherine Parker This world-renowned geyser is a must-see for every Yellowstone ... Point trail for a bird's-eye view of the Upper Geyser Basin. Many recent visitors chose to gather around the ...

The new geyser is located just under a mile north of the Norris Geyser Basin. If traveling on the road between Mammoth Hot ...