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 ...

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 ...