Yellowstone National Park is full of surprises. With more than 10,000 geothermal features dotted across its forests and basins, this wild landscape of steam, mudpots, hot springs, and jets of boiling ...

The world’s largest acidic geyser has begun erupting again in Yellowstone after slumbering for over five years, the national park said Monday. Echinus Geyser, located in the back basin of the Norris ...

WASHINGTON — Yellowstone's Echinus Geyser, which is the largest acidic geyser in the world, came out of five years of dormancy last month to start erupting several times a day, according to the U.S.

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week’s contribution is from Michael Poland, geophysicist with the ...

Around 30 miles south in Yellowstone’s Upper Geyser Basin, the Old Faithful geyser continues to remain faithful to its consistent schedule of erupting every 90 minutes or so. The towering cone of ...