Overview
- Park geology teams reported on Monday that they have removed more than 20,100 pieces of trash, about 5,600 rocks and sticks, and roughly 280–300 hats from developed hydrothermal areas so far in 2026.
- The haul includes ordinary litter and odd personal items such as hats, AirPods, Pokémon cards, retainers, toy cars, camera lens caps and about $18 in coins collected from springs.
- Trained crews use extendable poles, strainers, rakes and careful field methods to extract debris that can be reached while leaving deeply buried or hazardous objects in place.
- Scientists warn foreign material can clog vents, divert runoff, lower temperatures and change microbial communities and eruption behavior, with some past damages becoming effectively irreversible.
- Park staff are washing wearable hats for donation, urging visitors to stay on boardwalks, secure loose items and call staff if something falls near a thermal feature to protect safety and park resources.