“We found tons, probably thousands of coins,” former Yellowstone ranger Jeff Henry told Wyoming news outlet Cowboy State ...

Yellowstone tourists accused of ruining park’s famous thermal pool with ‘good luck’ coin tosses - A former ranger of ...

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

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

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