One of Yellowstone's iconic thermal pools has been ruined by tourists due to persistent littering.The Morning Glory Pool, long celebrated as a "must-see" destination, now suffers from murky brown waters instead of its historical pristine blue.

Glory hot spring lost it's natural beauty due to years of visitors treating the body of water like a wishing well, throwing coins, trash and anything else they wanted to discard into it

Glory Pool — perched near the famous “Old Faithful” geyser — was for years a must-see attraction in the Upper Geyser Basin in Yellowstone National Park, according to Cowboy State

Glory Pool has been the victim of decades long ‘vandalism’ causing its deep blue colour to change to a rusty yellow

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

Tourists have ruined one of Yellowstone’s most gorgeous thermal pools — turning its once pristine blue waters into a mishmash of colors because of years of accumulated coins and trash, officials said.

Yellowstone National Park’s famous geothermal pool named Morning Glory has reportedly changed color due to the volume of debris thrown in by visitors. According to park historians and former employees,

Shutterstock Photo While tourists bring a lot of funds to Yellowstone Park, they also bring a lot of damage. Carelessness and ignorance can often have long-lasting negative effects on the planet, and that appears to be the case here.