Old Faithful is a cone geyser located in Wyoming, in Yellowstone National Park in the 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. The geyser, as well as the nearby Old Faithful Inn, is part of the Old Faithful Historic District.
Eruptions can shoot 3,700 to 8,400 US gallons of boiling water to a height of 106 to 185 feet (32 to 56 m) lasting from 1.5 to 5 minutes. The average height of an eruption is 145 feet (44 m). The highest recorded eruption was 185 feet (56 m) high. Intervals between eruptions can range from 45 to 125 minutes, averaging 66.5 minutes in 1939, slowly increasing to an average of 90 minutes apart today.
More than 137,000 eruptions have been recorded. Harry Woodward first described a mathematical relationship between the duration and intervals of the eruptions (1938). Old Faithful is not the tallest or largest geyser in the park; that title belongs to the less predictable Steamboat Geyser. Its popularity is more likely due to the small eruption window and high frequency.
Below is a list of related Wikipedia articles regarding locations nearest to
Below is weather data obtained from the closest weather station to this location:
Below is a list of Flickr images that have been taken recently within a 5km
radius of this location: