The world's largest acidic geyser has begun erupting again in Yellowstone after slumbering for over five years, the national ...

The geyser really came alive in fall 2017. From October 18 to November 10, 2017, Echinus consistently erupted roughly about ...

The largest acidic geyser in the world, Echinus Geyser, is active again, with eruptions occurring every 2 to 5 hours, ...

Echinus is the largest known acidic geyser on Earth.

The eruptions began in early February. It’s unknown whether the eruptions will continue into the busy summer tourism season, ...

The Echinus Geyser had been silent for the last six years, and it is unknown whether the eruptions will continue into the summer.

Yellowstone's Largest Acidic Geyser Wakes Up After Six Years, Blasting Water 30 Feet High ...

Learn more about the Echinus Geyser at Yellowstone Park, which recently erupted, but may not sustain into the summer.

In early February 2026, repeated surges of the geyser began—as before, with the surface becoming agitated and releasing more ...

Yellowstone’s Echinus Geyser awakens after years of dormancy, offering rare eruptions and unforgettable experiences for ...

Located in the Back Basin of the Norris Geyser Basin, the geyser unexpectedly erupted on Feb. 7 after nearly six years of ...

Echinus Geyser in Yellowstone National Park’s Norris Geyser Basin is erupting again for the first time since 2020, after ...