Advice from a Geyser - Let off a little steam!
The mixture of water and hot molten rock beneath the earth produces the upward momentum to blast a stream of water into the sky. Sometimes it is bubbling to the surface and other times it shoots skyward in its perfect rhythmical timing to dazzle all that are witness to view it.
Named because of its regularity, Old Faithful Geyser in Yellowstone National Park is a cone geyser and shoots between 3,700 and 84,00 gallons of boiling water 106 to 185 feet in the air! The eruption lasts anywhere from 1.5 to 5 minutes and the time between spectacular displays ranges from 45 to 125 minutes.