Old Faithful can vary in height from 100-180 feet with an average near 130-140 feet. This has been the historical range of its recorded height. Eruptions normally last between 1.5 to 5 minutes.

Old Faithful is losing steam. Yellowstone National Park’s landmark geyser has spewed scalding-hot groundwater every 90 to 94 minutes on average, about 17 times a day, since time immemorial.

How Old Faithful works Old Faithful earned its name for its regular eruptions, which average every 92 minutes. Just after an eruption, there's a 15-minute recharge period with low water levels.

The Old Faithful Geyser in Yellowstone National Park blows water approximately ever 90 minutes. The the mechanics behind this beautiful mystery have been revealed this week in a new study.

Old Faithful was first documented and named on this day in history, Sept. 18, 1870. The photos here show the geyser erupting in 1871. (W.H. Jackson/The New York Historical Society/Getty Images) ...

In the 1950s, Old Faithful erupted roughly every 60 minutes. But during the time of Hurwitz’s study, there were no big earthquakes, only a pattern of low rain and snow.

By the way, Old Faithful’s water can be as hot as 204 degrees F, which freezes faster than cold water in cold temperatures, according to Science Alert.

Man severely burned in hot spring at Old Faithful A 48-year-old man was severely burned after falling into a hot spring in Yellowstone National Park in Wyoming on Sunday night, officials said.

Old Faithful faithfully erupts about every 90 minutes but God is faithful every minute of every day. In fact, II Timothy 2:13 tells us, “If we are not faithful, he will still be faithful.

A man was caught on camera trespassing at Old Faithful in Yellowstone National Park Friday. Ashley Lemanski was visiting YNP with her family when they saw the whole thing and she started recording ...

A 19-year-old woman was hospitalized in serious condition Thursday after suffering second- and third-degree burns at Old Faithful in Yellowstone National Park.

Tourists who come to see Yellowstone’s Old Faithful probably won’t notice what’s right under their feet. A new, spongy footpath made in part from 900 used tires leads visitors to the West ...