“We found tons, probably thousands of coins,” former Yellowstone ranger Jeff Henry told Wyoming news outlet Cowboy State Daily. “The main park road used to go right by Morning Glory, so that would account for some of the metal parts that looked like car parts chucked into the bottom of the pool.”

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.

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

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