Echinus Geyser in Yellowstone National Park, a rare acidic geyser and the largest in the world, has recently been observed ...

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

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

The largest acidic geyser in the world is erupting again at Yellowstone National Park after several years of dormancy, according to the U.S. Geological Survey. Echinus Geyser, a 66-foot geyser pool ...

Norris Geyser Basin is known for being the hottest and most dynamic of National Park’s thermal areas—and that’s saying ...

The geyser is likely to fall back into dormancy soon, but there's a slim chance the spectacular eruptions will continue into ...