Overview

• The Yellowstone Geology Program’s specialists work inside hydrothermal zones to remove debris safely despite scalding water and unstable ground.
• Crews use grabber poles up to 30 feet, fishing rods and extra‑long slotted spoons to reach items without harming microbial mats, and they have also cleared thousands of rocks and sticks this year.
• High winds combined with millions of visits drive a steady stream of unintentionally blown belongings and food waste into thermal areas, which is especially time‑consuming to remove.
• Even small additions can alter water color, temperature or eruptions, a risk underscored by the long‑changed Morning Glory Pool and other sensitive features.
• Unusual finds this season include a pizza box with slices, a stuffed koala and a Polaroid recovered from Excelsior Geyser, and the hat haul alone is valued at roughly $6,000 as crews urge visitors to secure gear, stay on boardwalks and use trash cans.