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

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

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. Montana State University-led research shows how lake mud records Yellowstone's ancient fires, forests and geyser activity. (CREDIT ...

As crowds soar, wildlife can suffer. And for the park's human visitors, the idea of getting away from it all gets tougher.

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 ...

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 ...

A study led by a Montana State University research professor reveals how climate and hydrothermal activity have shaped the vegetation, wildfire and aquatic ecosystem histories of the Yellowstone ...

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 ...

Learn more about the Echinus Geyser at Yellowstone National Park, which recently erupted, but may not sustain into the summer. Yellowstone National Park’s hundreds of thermal geysers spew water into ...