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 State Daily.

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.

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. However ...

Yellowstone National Park tourists have been blamed for ruining a once pristine, crystal- blue thermal pool by treating it like a wishing well for decades. Morning Glory Pool is a thermal pool in ...

The Morning Glory Pool had clear-blue waters until tourists became infatuated with the site's beauty. Now, the thermal pool in the Upper Geyser Basin near the famous Old Faithful has a totally ...

Before the 1960s, Yellowstone’s Morning Glory pool was a deep, sometimes tropical-looking blue. It was named after the flower that its color resembled. If you had visited Yellowstone in ...

Green may be a celebratory St. Patrick's Day color, but the unwanted appearance of green and yellow colors in Yellowstone National Park's normally electric blue Morning Glory thermal pool are ...

Located near Old Faithful in Yellowstone Park, the gorgeous Morning Glory pool has attracted visitors far and wide. Watch this video to discover why this majestic pool is changing hue. The truth b ...

Most famously, the Morning Glory Pool used to be bright blue; it's now more commonly known as "Fading Glory" or, even more accurately, "Garbage Dump," because of what happened when humans started ...

Morning Glory was once a deep blue, like the flower it’s named after. Over the years, however, tourists have tossed lucky coins, rocks, and other debris into the pool, partially blocking the ...

There must be thousands of images of the thermal Morning Glory Pool, taken in daylight by visitors to Yellowstone National Park in the USA. Some seven metres in diameter, the pool is home to ...

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 ...