Yellowstone National Park crews recovered over 26,000 dropped items from geysers in 2026.

This year, visitors have dropped pink slime, fake nails and retainers into the national park's hydrothermal attractions.

Talk about a hot mess. Old Faithful has been blowing its top for generations — but these days, Yellowstone National Park workers have another eruption to worry about: tourist junk. As of early ...

Add Yahoo as a preferred source to see more of our stories on Google. Crews hoist a car that ran off the road into Semi-Centennial Geyser in Yellowstone National Park on July 12. The car went off the ...

View larger. | Thermal feature UNNG-GHG-17a, not far from Sponge geyser on Geyser Hill in Upper Geyser Basin, Yellowstone National Park. The feature formed during a period of thermal unrest that began ...

Add Yahoo as a preferred source to see more of our stories on Google. Montana State University-led research shows how lake mud records Yellowstone's ancient fires, forests and geyser activity. (CREDIT ...

A surprise eruption of steam in a Yellowstone National Park geyser basin that sent people scrambling for safety as basketball-sized rocks flew overhead has highlighted a little-known hazard that ...

The Yellowstone National Park Geology Team documented the wackiest finds people left in the park, encouraging tourists to keep it clean.

Tourists traveling by plane over Yellowstone National Park on Thursday were treated to a rare and magnificent view of the world’s tallest active geyser shooting steam 400-plus feet skyward. The ...

A 17-year-old visitor to Yellowstone National Park suffered serious burns on Monday after stepping through fragile ground near the Lone Star Geyser, about three miles from Old Faithful. According to ...