Rangers attempting to clean the Morning Glory Pool in September 1975.

Some of the prime attractions that make Yellowstone National Park stunning and unique are the park’s 10,000-plus hydrothermal ...

A specialized team of scientists says they've collected over 300 hats, amid 13,000 pieces of trash blown into the vast ...

Geothermal debris is a more common problem than you might think: Already this year, park staffers have removed more than ...

Geologists at Yellowstone National Park have already collected more than 300 hats from the park’s hot spring areas this year ...

If you don't get to see it, there are more than 500 active geysers located within Yellowstone National Park, including Old Faithful. Established in 1872, Yellowstone National Park was the world's ...

In the fall cleaning campaign, Yellowstone's geology team discovered a trove of unusual items tossed by visitors.

Park visitors should ‘hold on tight’ to their hats and stay on marked boardwalks and trails to avoid losing their favorite ...

More than 13,000 pieces of garbage have been retrieved this year from hydrothermal areas in Yellowstone so far this year.

July 13 (UPI) --Officials in Yellowstone National Park in Wyoming have successfully removed a fully-submerged vehicle from a geyser, after the SUV went off the road and crashed. All five of the ...

How Yellowstone, a landscape once sacred to Native Americans, later inspired Christians and New Age communities alike.