description Crested Pool Overview
The Crested Pool is a geothermal hot spring within Yellowstone National Park’s Upper Geyser Basin. It's notable for its consistently turbulent behavior, featuring regularly boiling water and temperatures approaching 93°C. This intense activity makes it a fascinating geological feature to observe and is of interest to volcanologists, geographers, and those studying hydrothermal systems.
help Crested Pool FAQ
Is Crested Pool a geyser or a hot spring?
It is classified as a hot spring because its open plumbing allows water to circulate instead of building the pressure needed for a geyser eruption. The surface can still boil violently, sometimes throwing water roughly 2 metres high.
How hot is Crested Pool?
The National Park Service reports an average temperature of about 88.4 degrees Celsius, or 191.1 degrees Fahrenheit. That extreme heat suppresses most bacterial growth and contributes to the pool's clear blue appearance.
Where is Crested Pool in Yellowstone?
It lies in the Upper Geyser Basin near Castle Geyser and the Old Faithful area. Visitors view it from the designated boardwalk system.
Why is it called Crested Pool?
Its name refers to the intricate raised sinter rim around the spring, where boiling is especially active. The pool formerly carried names including Devil's Well and Castle's Well before Crested Pool became official.
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