A hydrothermal explosion sent visitors at Yellowstone National Park running for safety on Tuesday, damaging the boardwalk but ...

SIOUX FALLS S.D. (KELO) — A hydrothermal explosion in Biscuit Basin has left the part of Yellowstone National Park temporarily closed. The explosion occurred near the Sapphire Pool around 10 a.m ...

Stories about bears, wolves, bison and elk, and their home on the range, Yellowstone Park, paid the bills at the Gazette this ...

Tourists at Yellowstone ran for cover as rocks fell from the sky following the explosion. The park said it did not reflect a change in the region’s volcanic system. Photo: Vlada March/National ...

This story appears in the August 2009 issue of National Geographic ... the warming effects of the hydrothermal springs at the bottom of frigid Yellowstone Lake. The park roils with geysers ...

Visitors were forced to flee as a huge hydrothermal explosion shot steam and debris into the air at Yellowstone National Park Videos show dozens of people running as a large column of grey mud ...

This is a hydrothermal explosion crater that has existed since at least 1954 located just southwest of The Gap in Norris Geyser Basin, Yellowstone National Park. (Courtesy of Lauren Harrison ...

Yellowstone National Park is particularly special. Yellowstone’s mesmerizing hydrothermal features and spectacularly varied landscapes make it abundantly apparent why the land should be protected.

Grant signed the Yellowstone National Park Protection Act to preserve the region’s hydrothermal and geologic features. The 2.2-million-acre park, most of which is in Wyoming, is home to bison ...

On top of the tuff are glacial sediments, sinter and hydrothermal explosion breccias ... including some of the most unique features in Yellowstone National Park (i.e., acidic mud pots, neutral ...