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 ……
Old Faithful is a cone geyser located in Yellowstone National Park in Wyoming, United States. It was named in 1870 during the Washburn-Langford-Doane Expedition and was the first geyser in the park to receive a name. Image circa 1985.