Giant Geyser - Yellowstone N.P., Wyoming - Hot Springs on Waymarking.com

Giant Geyser is a cone-type geyser with a 12 foot high cone (broken on one side) with an inside diameter of 6 feet. Eruptions typically reach heights of 150 to 250 feet and have a duration of about an hour. The frequency of eruptions has varied greatly. For example from 1963 to 1987 there were only six eruptions, in 2007 there were 54 eruptions, and in 2009 there were no eruptions.
Information sources: The Geyser Observation and Study Association (visit link) and Yellowstone National Park.com (visit link)
Text of sign at Giant Geyser:
Giant Geyser
When active, Giant Geyser is one of the largest in the world. Historic accounts describe Giant’s eruptions soaring to heights of 250 to 300 feet. However, recent eruptions have ranged from 200 to 250 feet.
Giant Geyser displays cycles of activity and dormancy. The unpredictability of Giant is due, in part, to interconnections between it and the geysers and hot springs of the nearby Grotto Group.
Fast Facts:
Giant is a cone-type geyser.
When active, Giant’s eruptions may reach heights of 200 to 250 feet.
Giant’s eruptions can last from 1 to 1.5 hours and expel more than a million gallons of water.
Shrouded in Antiquity
The large sinter shroud surrounding Giant’s vent may be an indication of the geyser’s great age. The slow accumulation of mineral (1 to 2 inches every 100 years) indicates that Giant could be thousands of years old.

Temperature (F): 203 Temperature (C): 95 Type: Developed Cost?: Use Fee Open to the Public?: no Clothing Optional?: no Other Amenities: Adjacent to boardwalk trail in Upper Geyser Basin.

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Date Logged Log User Rating   07/26/2022 chrissyml visited it 09/19/2019 dzeih visited it 12/01/2016 Castor007 visited it 01/22/2016 BFin visited it 06/17/2013 DukeRoom visited it 07/27/2012 The_Simpsons visited it 10/02/2010 Volcanoguy visited it

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