As one of the top things to do in Yellowstone, visitors should their trip at Old Faithful. With the geyser and its Inn leading the way, visitors can find lots of other activities in the area ...

Catherine Parker This world-renowned geyser is a must-see for ... Visit the National Park Service's Old Faithful Area page for more information. Yellowstone”Open Air” Glass Top Convertible ...

Yellowstone National Park Yellowstone National Park, sprawled across Wyoming, Montana, and Idaho, is a wonderland of ...

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 ...

Lightning strikes above the Fan and Mortar geysers in Yellowstone's Upper Geyser Basin ... is chlorophyll they use to absorb sunlight. Old Faithful throws a tower of steam into a moonlit sky.

Yellowstone is well known for its "Old Faithful" geyser and its stunning wildlife. But the national park also sits atop a supervolcano, simmering just under the surface. You can see some of the ...

Old Faithful erupts more frequently than any of the other big geysers, although it is not the largest or most regular geyser in the park. Its average interval between eruptions is about 76 minutes ...