Yellowstone Geyser Erupts For 1st Time in Years
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Yellowstone's Echinus Geyser erupted for the first time in six years, with multiple bursts reported in February.
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Mysterious Blue Pool Appears at Yellowstone Following Series of Hydrothermal Explosions
A series of explosions created a silica-filled water pool to the left of Tree Basin in Yellowstone National Park.
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