USA-Printables

Yellowstone National Park coloring pages - Old Faithful geyser

Old Faithful eruptions discharge between 3,700 to 8,400 U.S. gallons of boiling water to a height of 106–185 feet lasting from 1.5 to 5 minutes. With an error of 10 minutes, Old Faithful will erupt 65 minutes after an eruption lasting less than 2.5 minutes or 91 minutes after an eruption lasting more than 2.5 minutes