Castle Geyser in Yellowstone is One of the Oldest

Overview:
- Castle Geyser is one of the most distinguishing features of the Upper Geyser Basin in Yellowstone National Park.
- Located across the Firehole River, along the boardwalk from Old Faithful to the Chromatic and Beauty Pools.
Eruption Details:
- Erupts approximately every 11 to 13 hours, reaching heights of up to 75 feet.
- Eruption duration is about 20 minutes.
- Erupts twice per day.
Geological Features:
- 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.
Impact on Surroundings:
- Floods the surrounding area with hot, silica-rich water, dramatically altering the landscape over time.

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