Castle Geyser in Yellowstone is One of the Oldest    

• What is Castle Geyser?
  • Castle Geyser is one of the most distinguishing features of the Upper Geyser Basin in Yellowstone National Park.
  • It is located across the Firehole River, along the boardwalk from Old Faithful to the Chromatic and Beauty Pools.
• How often does Castle Geyser erupt?
  • Castle Geyser erupts approximately every 11 to 13 hours, reaching heights of up to 75 feet.
  • Each eruption lasts about 20 minutes.
  • The geyser erupts twice per day.
• What are the geological features of Castle Geyser?
  • The large cone indicates its significant age, with thousands of years of silica deposits from scalding water.
  • Castle Geyser is much older than Old Faithful, which is only a few hundred years old.
• How does Castle Geyser impact its surroundings?
  • Each eruption floods the surrounding area with hot, silica-rich water, dramatically altering the landscape over time.

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