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Steamboat Geyser

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Steamboat Geyser
Major eruption, Steamboat Geyser, circa 1960s
Location	Norris Geyser Basin, Yellowstone National Park, Park County, Wyoming
Coordinates	44°43′25″N 110°42′11″WCoordinates: 44°43′25″N 110°42′11″W[1]
Elevation	7,598 feet (2,316 m)[2]
Type	Cone geyser
Eruption height	10 to 300 feet (3.0 to 91.4 m)
Frequency	1 month to 10 years
Duration	3 to 40 minutes
Temperature	71.3 °C (160.3 °F) on 1998-06-26[1]
Norris Geyser Basin

Steamboat Geyser, in Yellowstone National Park's Norris Geyser Basin, is the world's tallest currently-active geyser. During major eruptions, water may be thrown more than 300 feet (91 m) into the air.^[3]
Steamboat's major eruptions last from 3 to 40 minutes, and are followed by powerful jets of steam. Steamboat does not erupt on a predictable schedule, with recorded intervals between major eruptions ranging from four days to fifty years. The geyser was dormant from 1911 to 1961. Minor eruptions of 10 to 15 feet (3.0 to 4.6 m) are much more frequent. After an eruption, the geyser often vents large amounts of steam for up to 48 hours.^[4] Cistern Spring, located nearby, will drain completely during a major eruption of the geyser; the spring refills within a few days.
Prior to 1904, Waimangu Geyser, in New Zealand, had some taller eruptions capable of reaching 1,600 feet (490 m), but in 1904, a landslide changed the local water table, and since then, Waimangu has not erupted.^[5] Excelsior Geyser in Yellowstone's Midway Geyser Basin likewise was taller, with eruptions reaching 300 feet (91 m). However, Excelsior has not erupted since 1985,^[6] and now functions as a hot spring (though eruptions are, as in all hot springs, still a possibility).
The last eruption of Steamboat Geyser occurred on April 27th, 2018. The last several major eruptions were on the following dates:^[7]

• October 12, 1991
• May 2, 2000 - (3,125 days)
• April 26, 2002 - (724 days)
• September 13, 2002 - (140 days)
• March 26, 2003 - (194 days)
• April 27, 2003 - (32 days)
• October 22, 2003 - (178 days)
• May 23, 2005 - (579 days)
• July 31, 2013 - (2,991 days)
• September 3, 2014 - (399 days)
• March 15, 2018 - (1,289 days)
• April 19, 2018 - (35 days)
• April 27, 2018 - (8 days)

Steamboat Geyser has two vents, a northern and a southern, approximately five meters apart

from wikipedia