“Old Faithful” first earned its name in 1870, when a group of explorers noted that it erupted roughly once every 60 minutes. After decades of earthquakes, it now erupts about every 90 minutes. – Tiny Fox Lab Facts
Old Faithful is Not As Faithful As It Once Was
The world's most famous geyser, Old Faithful in Yellowstone, currently erupts around 20 times a day.
Jesse, posted on 11/22/2019, 4,328 views