Yellowstone visitors once used Handkerchief Pool like a natural washing machine; after a log stopped its activity in 1926, a 1929 cleanup removed 1.5 bushels of debris, including 100-plus hairpins and a horseshoe
Handkerchief Pool was a visitor favourite for its ability to pull in handkerchiefs and return them washed and clean. (NPS photos) Long before Yellowstone National Park became known for strict rules around its hot springs and geysers, visitors were encouraged to marvel at some of the park’s unusual thermal features.One of them was Handkerchief Pool,…