Once a brilliant blue, the famous pool's color has changed after decades of damage by the national park's visitors.

In the 1970s, rangers realized the depth of the problem at the Morning Glory Pool and decided to clean it out. They partially ...

The once-strikingly blue pool has transitioned to yellow-green due to coins, trash, and rocks thrown by tourists over the ...

Glory Pool — perched near the famous “Old Faithful” geyser — was for years a must-see attraction in the Upper Geyser Basin in ...

One of Yellowstone's iconic thermal pools has been ruined by tourists due to persistent littering.The Morning Glory Pool, ...

The tradition of throwing things into the pool dates back to 1872, when the park first opened, according to Yellowstone ...

Glory Pool', heated by Yellowstone Supervolcano, looked different than it does today after a century of pollution from ...

Glory Pool, located in the Upper Geyser Basin near Old Faithful in Yellowstone National Park, used to appear as the dazzling ...

Glory Pool near Old Faithful was once one of the most beautiful thermal pools in Yellowstone National Park. It was a ...

Austin King, 22, has been missing since he failed to return from a week-long solo excursion to summit Eagle Peak, the highest ...

Tourists have ruined one of Yellowstone’s most gorgeous thermal pools — turning its once pristine blue waters into a mishmash ...