Yellowstone letters reveal 1925 explosion story was misplaced by 1,000 feet

A captivating century-old enigma surrounds Yellowstone’s Biscuit Basin, centering on the misplacement of Black Pearl Geyser. The confusion stemmed from a hydrothermal explosion in 1925, which not only reshaped the landscape but also displaced a key sign. Correspondence from 1926 highlighted the depth of this perplexity related to the geyser’s position.