Old Faithful

Explore Old Faithful Area

Discovered in 1870 by the Washburn Expedition, Old Faithful geyser was named for its frequent eruptions — which number more than a million since Yellowstone became the world’s first national park in 1872.

Watch what happens when Old Faithful geyser erupts in freezing temperatures.

Have You Ever Wondered... Why is it called “Old Faithful"? What is a geyser? How often does Old Faithful erupt?

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The world's most renowned geyser is a must-see for every Yellowstone visitor. Although it isn't the largest geyser in the world, Old Faithful's eruptions are definitely awe-inspiring, averaging around 130 feet high and at times clearing 180 feet. Like its name suggests, you can count on Old Faithful erupting approximately every hour and a half (the nearby visitors center can provide you with a more accurate schedule). There are several ways to see Old Faithful's power: you can join the crowds of tourists who gather around the perimeter or find a less hectic spot in the dining room of the nearby Old Faithful Inn, a rustic log hotel constructed during the winter of 1903. More adventurous travelers can enjoy the mile-long hike out to Observation Point for a bird's-eye view of the Upper Geyser Basin.

Live-streaming webcam of Old Faithful Geyser and the surrounding Upper Geyser Basin

Old Faithful is a cone geyser located in Yellowstone National Park in Wyoming, United States. Old Faithful was named in 1870 during the Washburn-Langford-Doane Expedition and was the first geyser in the park to receive a name.[3][4] It is a highly predictable geothermal feature; since 2000, it has erupted every 44 to 125 minutes.[5][6] The geyser, as well as the nearby Old Faithful Inn, is part of the Old Faithful Historic District.