Cloud Wash
Old Faithful Geyser Yellowstone N.P. Old Faithful erupts more frequently than any of the other big geysers, although it is not the largest or most regular geyser in Yellowstone National Park. It is believed this regularity is in part due to no known connection with other hydrothermal features in the area.
Its average interval between eruptions is about 90 minutes, varying from 50 to 127 minutes. An eruption lasts 1.5 to 5 minutes and expels 3,700–8,400 gallons (14,000–32,000 l) of boiling water, and reaches a height of 106–184 feet (30–55 m). Old Faithful Geyser has an average temperate of 169.7°F (76.5°C), an average pH of 9, and an average conductivity of 1972 uS/cm. -NPS
Cloud Wash
Old Faithful Geyser Yellowstone N.P. Old Faithful erupts more frequently than any of the other big geysers, although it is not the largest or most regular geyser in Yellowstone National Park. It is believed this regularity is in part due to no known connection with other hydrothermal features in the area.
Its average interval between eruptions is about 90 minutes, varying from 50 to 127 minutes. An eruption lasts 1.5 to 5 minutes and expels 3,700–8,400 gallons (14,000–32,000 l) of boiling water, and reaches a height of 106–184 feet (30–55 m). Old Faithful Geyser has an average temperate of 169.7°F (76.5°C), an average pH of 9, and an average conductivity of 1972 uS/cm. -NPS