Old Faithful is famous because unlike most geysers, it has a regular pattern of erupting. Other geysers can erupt at anytime, but Old Faithful typically erupts between every 60 to 110 minutes. Located in Yellowstone Park, Old Faithful is not considered the tallest geyser in the park. In fact, it only averages 130 feet. The highest recorded eruption was 185 feet.
Old Faithful is only one of over 500 geysers that are located throughout Yellowstone Park. An Old Faithful eruption typically lasts up to five minutes. It's estimated that during an eruption, the geyser expels between 3,700 to 8,400 gallons of water. The temperature of the water has been measured at 204 degrees Fahrenheit in the past. The steam's temperature has previously topped 350 degrees Fahrenheit. The geyser was named by the Washburn-Langford-Doane Expedition party in 1870.
Steamboat Geyser has the distinction of being the tallest in Yellowstone park and also the tallest active geyser in the world. The geyser averages up to 300 feet during an eruption, and it is notoriously unpredictable. The geyser had a 50-year dormancy period. The most recorded eruptions of the Steamboat Geyser in a year was in 1964, when park officials recorded 29 eruptions.