One of thermal pools has been destroyed by tourists because of years of . The Morning Glory Pool has been a “must-see” attraction for years, but now its once pristine blue waters are a muddy brown colour. For years, have treated the brilliant blue like a “wishing well”.

“There are some lovely quotes about its beauty and stunning blue colours, and likening it to the Morning Glory flower,” Yellowstone National Park historian Alicia Murphy told . But now, Murphy says, there is an environmental price being paid. “People didn’t understand the plumbing and how geysers worked,” she said.

“There were lots of ideas about, ‘If we throw something into this pool, we might be able to make it erupt.’” Yellowstone was established in 1872 as America’s first national park, which means there has been over a century of misuse. “I think there was some trial and error and a misunderstanding of the damage they were doing,” Murphy added.

Although Morning Glory now boasts an incredible bronze colour, this is a million miles from the pure blue it started off as. Although people these days are more “respectful than the early days”, there is a general consensus that the “damage has already been done”. Another Yellowstone attraction that definitely shouldn’t be tampered with is the super volcano of the same name.

Yellowstone last erupted more than 70,000 years ago, and to be clear, there is no indication that it might blow again anytime soon. However, this revel.