From Old Faithful to the lesser-known (but bigger!) Steamboat Geyser in the park's Norris Geyser Basin, Yellowstone is perhaps the best place in the world to see and learn about these hydrothermal ...

and pools next to Old Faithful Geyser in Yellowstone's Upper Geyser Basin. Geyser Hill is a must for any Yellowstone visitor.

This story appears in the December 2016 issue of National Geographic magazine. Become a member of National Geographic to explore more incredible images and stories from our archives. The star of ...

Grand Prismatic Spring ascended from a beautiful backwater spot to the second most popular destination in Yellowstone ...

A magnitude 3.9 earthquake was measured near Norris Geyser Basin in Yellowstone National Park on Tuesday evening. It's the ...

Catherine Parker This world-renowned geyser is a must-see for every Yellowstone visitor ... Steamboat Geyser in the Norris Geyser Basin), Old Faithful's eruptions are definitely awe-inspiring ...

The most famous geyser at Yellowstone, and perhaps the world, is Old Faithful. Old Faithful is famous for its incredibly predictable schedule of eruptions, which makes it perfect for visits from ...

It’s no secret that Yellowstone National Park can be jampacked in the summer, when up to 1 million people jockey for space ...

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 ...

including “The story of Old Faithful,” “Studies of geysers and hot springs along the Firehole River, Yellowstone National Park, Wyoming,” and “Story of Great Fountain Geyser to 1965 ...

George Marler's documentation of hydrothermal activity has provided future generations with invaluable information, writes ...

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 ...