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 ...

Geyser Hill is a must for any Yellowstone visitor. It begins at Old Faithful and is a short boardwalk loop trail with over 50 of the 500 geysers in Yellowstone.

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.

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

Lying five miles beneath the surface of Yellowstone National Park in Wyoming ... have discovered a newly opened volcanic vent in Norris Geyser Basin. The vent is at the foot of a rhyloite ...

There’s not a grizzly bear in Yellowstone National Park that is ... bear from its cozy hangout in the Old Faithful/Upper Geyser Basin area. Grizzly bears are emerging from hibernation and ...

A Seattle tourist will serve one week in prison for walking off the boardwalk at Yellowstone National ... located in the Upper Geyser Basin, erupts more frequently than any other large geyser ...

If you don't get to see it, there are more than 500 active geysers located within Yellowstone National ... about a mile north of the Norris Geyser Basin. It's located between a lava flow and ...