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Tourists traveling by plane over Yellowstone National Park on Thursday were treated to a rare and magnificent view of the world’s tallest active geyser shooting steam 400-plus feet skyward. The ...

Two years after a dramatic explosion in Yellowstone's Biscuit Basin, a new geyser shot up near Black Diamond Pool.

Around 465 active geysers are roiling across Yellowstone National Park at any given time, with new ones regularly bubbling to ...

Steamboat Geyser is the world’s tallest active geyser, and it used to be really active. For the past several years, the feature blasted steaming hot water hundreds of feet into the air above ...

Yellowstone’s Echinus Geyser—the largest acidic geyser on Earth—is putting on a show with a rare and spectacular reawakening. Located in the Back Basin of the Norris Geyser Basin, the geyser ...