1925 Yellowstone Explosion Caused Black Pearl Geyser Sign Mix-Up
In 1925, a hydrothermal explosion at Yellowstone's Biscuit Basin reshaped the landscape and displaced the Black Pearl Geyser sign. A century later, the US Geological Survey uncovered this long-standing confusion about the geyser's location. Correspondence from 1926 revealed the early recognition of the sign's misplacement following the explosion.
TOI Science·

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