Giantess Geyser
Introduction '''Giantess Geyser''' is a fountain-type geyser in the Upper Geyser Basin of Yellowstone National Park. It is known for its violent and infrequent eruptions of multiple water bursts that reach from . Eruptions generally occur 2 to 6 times a year. The surrounding area may shake from underground steam explosions just before the initial water and/or steam eruptions. Eruptions may occur twice hourly, experience a tremendous steam phase, and continue activity for 4 to 48 hours. The Geyser last erupted on August 26, 2020, after a six-year, 210 day hiatus. A follow-up eruption occurred 15 days later on 10 September 2020.Another eruption occurred on 11 August 2021
History Giantess Geyser was one of the seven geysers named during the Washburn–Langford–Doane Expedition to the park region in 1870.Walter Trumbull, a member of the expedition described Giantess in his diary:Nathaniel P. Langford in his ''Diary of the Washburn Expedition to the Yellowstone and Firehole Rivers in the year 1870'' described the Giantess thus:
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