Old Faithful Yellowstone National park

What is Old Faithful??

For those of you who are unfamiliar, a geyser is a hot spring in which water periodically boils, sending a tall column of water and steam into the air

For a geyser such as Old Faithful to be made, several components are needed: Water, heat, earthquakes, and plumbing.

Yellowstone is an active volcano. Because of this, geysers like Old Faithful exist

Discovered in 1870 by the Washburn Expedition, Old Faithful geyser was named for its frequent eruptions

Old Faithful is located within the Yellowstone National Park in Wyoming


The time in which Old Faithful erupts is not predictable. It usually erupts every 60-110 minutes

Eruptions normally last between 1.5 to 5 minutes

Since Yellowstone became the world’s first national park in 1872, more than a million eruptions have occurred!

Old Faithful can vary in height from 100-180 feet with an average near 130-140 feet.

Want to know something CRAZY??

Scientists estimate that the amount ranges from 3,700 gallons in 1.5 minutes to 8,400 gallons in 4.5 minutes!


How hot is the water exactly?


It has been measured during an eruption to be 204°F. The steam temperature has been measured above 350°F! This is NOT water you would want to take a bath in

Why visit Old Faithful and Yellowstone?

Awesome hiking!
Star gazing!
Beer Fest in the West!
Beautiful lodges
And of course the beautiful geysers


Created with images by James St. John - "Old Faithful Geyser erupting (14 August 2010) 56" • Paul Fundenburg - "Old Faithful" • Michelleyyy - "Old Faithful" • jimmiehomeschoolmom - "old faithful erruption rainbow effect" • cmickey67 - "Old Faithful at Sunrise" • marksontok - "Old Faithful and thunder storms" • amanderson2 - "Old Faithful Yellowstone" • mypubliclands - "Centennial Mountains WSA" • skeeze - "firehole lake milky way yellowstone national park" • tpsdave - "coyote animal wildlife" • Bernt Rostad - "Black Butte Porter" • YellowstoneNPS - "Lake Lodge, lobby" • cmickey67 - "Yellowstone's Castle Geyser at Sunrise"

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