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

Castle Geyser is a cone-type geyser and its 12 foot high cone is the largest cone in Yellowstone. The geyser was named by the 1870 Washburn expedition. Eruptions typically reach a height of 60 to 90 feet. A typical eruption has a 20 minute water phase followed by a 40 minute steam phase. Eruptions are around 14 hours apart.
Information sources: The Geyser Observation and Study Association (visit link) and Yellowstone National Park.com (visit link)
Text of sign at Castle Geyser:
Castle Geyser
The massive cone is a sign of old age. Eruption after eruption, probably for thousands of years, scalding water has deposited this silica mineral formation. By contrast, Old Faithful’s fledgling cone may be only a few hundred years old.
Castle Geyser has dramatically changed its surroundings. By flooding the area with hot, silica-rich water, the geyser has devoured part of a pine forest and turned it into a thermal desert. Tree skeletons are entombed within the cone.
Castle Geyser’s eruptions are predictable; two per day are typically recorded.

Temperature (F): 200 Temperature (C): 93 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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Recent Visits/Logs:

Date Logged Log User Rating   06/14/2024 The A-Team visited it 09/19/2019 dzeih visited it 09/10/2019 icaunais visited it 08/24/2019 Duodenfer_ visited it 07/01/2017 dukemartin visited it 11/29/2016 Castor007 visited it 10/21/2016 LT_Dream visited it 06/30/2016 m&m O visited it 01/22/2016 BFin visited it 07/17/2014 OpusTerra visited it 06/18/2013 DukeRoom visited it 10/02/2010 Volcanoguy visited it

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