The Morning 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 ...

Morning Glory Pool, located in the Upper Geyser Basin near Old Faithful in Yellowstone National Park, used to appear as the dazzling crystal-clear blue color that inspired its name.

Historically, Morning Glory Pool dazzled early park visitors with its crystal-clear blue waters. Named after the vibrant Morning Glory flower, it was a key attraction in Yellowstone's early days ...

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 ...

The Morning Glory Pool is somewhat unique, however, because it's undergone such a radical tone change within decades. In the 1970s, rangers realized the depth of the problem at the Morning Glory ...

The magnificent Morning Glory Pool located near Old Faithful in Yellowstone Park attracts visitors from all over the world. Once displaying clear blue water the pool has been used as a wishing ...

These are historic and current simulations of Morning Glory Pool, using bare rock and pure water of varying depth for the historic image and a uniform orange microbial mat and pure water of ...

The Morning Glory thermal pool, a once-pristine, brilliant blue thermal feature in the park's Upper Geyser Basin has been transformed over the years as visitors have thrown things into its waters.

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 ...

Morning Glory Pool in the Yellowstone Upper Geyser Basin of the United States (Getty Images)“People didn’t understand the plumbing and how geysers worked,” she told Cowboy State Daily.

One of Yellowstone National Park's most iconic attractions has been permanently changed by tourists. The Morning Glory thermal pool, a once-pristine, brilliant blue thermal feature in the park's Upper ...