The world's largest acidic geyser is putting on a show again, erupting for the first time in six years after a quiet hiatus, officials at Yellowstone National Park say. The Echinus Geyser - located in ...
Tucked inside Norris Geyser Basin, the hottest and most geologically restless thermal area in all of Yellowstone National Park, Echinus Geyser has been quiet for years. But in early February 2026, ...
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.
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 ...