Editor’s Note: This story accompanies the May 2016 issue of National Geographic magazine, devoted entirely to America’s first national park. Find more at natgeo ...

A schematic map of Yellowstone’s volcanic structure highlights several key geothermal areas: ・Lower Geyser Basin (LGB) ・Norris Geyser Basin (NGB) ・Hot Springs Basin (HSB) While the ...

U.S. News Insider Tip: Visitors need to use caution, especially with kids, when walking along boardwalks in geothermal areas of Yellowstone. The water looks cool, but it can be boiling and cause ...

Mudpots are natural, bubbling pools of mud found in high-temperature geothermal areas with limited access to water such as Yellowstone or near the Salton Sea in California. Produced by Jenner Deal ...

It's not the geothermal geysers, bears, or bison, but this one safety concern in Yellowstone National Park claims more lives than anything else.

Located in Wyoming and stretching up into Montana and Idaho, Yellowstone National Park is the first national park in the ...

Catherine Parker Old Faithful may be Yellowstone's most well-known geyser ... recent travelers highly recommend checking out this geothermal area, saying it's an "other-worldly place" with ...

Yellowstone's geothermal wonders hide an active volcanic ... lies a volcanic system that has been an area of interest for geologists for decades. According to recent findings, molten material ...

“A black wolf walking on a geothermal boardwalk ... captivating glimpse into the lives of Yellowstone’s iconic wolves during the winter, when thermal areas provide warm refuge.