The vapor of Old Faithful’s eruption at Yellowstone and a bright sun form a rainbow further beautifying the world famous geyser. There is an illusion of two rainbows in the first image – one in the geyser and another one against the blue sky.


The vapor of Old Faithful’s eruption at Yellowstone and a bright sun form a rainbow further beautifying the world famous geyser. There is an illusion of two rainbows in the first image – one in the geyser and another one against the blue sky.
Discovered in 1870 by the Washburn Expedition, Old Faithful geyser was named for its frequent and somewhat predictable eruptions, which number more than a million since Yellowstone became the world’s first national park in 1872. Old Faithful can vary in height from 100-180 feet with an average near 130-140 feet. Eruptions normally last between 1.5 to 5 minutes.
Here is a sequence of images depicting a dormant Old Faithful to eruption and then cool down ……