Yellowstone National Park Crews Remove Record 20,000 Debris Items From Thermal Features

Yellowstone National Park’s geology team has removed a record-setting amount of debris from its fragile hydrothermal areas in 2026, including more than 20,100 pieces of trash, 5,600 rocks and sticks, and over 280 hats. Strong winds account for many lost items, while other debris—including coins, plastic, paper, electronics, toys and personal belongings—is dropped or thrown into hot springs and geysers. Foreign material can clog water sources, divert runoff and introduce chemicals, algae or bacteria, potentially causing lasting damage such as the color change documented at Morning Glory Pool. Trained geology staff use specialized equipment and safe-navigation techniques to retrieve the debris, while visitors are warned not to enter thermal areas or attempt rescues themselves. Reusable hats will be cleaned and donated, but park officials urge visitors to secure their belongings, pack out trash and never treat hot springs as wishing wells.
Last summer, geology staff traveled more than 1,300 miles on foot and 11,000 miles by vehicle to reach Yellowstone’s remote thermal features, using fishing rods, slotted spoons and grabber poles to remove debris.
The recovered debris included especially unusual objects such as AirPods, an inhaler, a single Uno card, Polaroid photos of Yellowstone’s thermal features and a two-inch copy of *The Vampire Diaries*.
Yellowstone staff have previously partially drained Morning Glory Pool to remove garbage and debris, underscoring the difficulty of cleaning items from the park’s thermal features.
Park officials specifically warn visitors not to retrieve their own belongings: Yellowstone employee Jeff Henry said doing so is “illegal, dangerous, and destructive” and advised, “Let a ranger get your hats.”
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