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Grotto Geyser

Grotto Geyser has a weirdly shaped cone reminiscent of cave-like formations.
Grotto Geyser's Cone

Grotto Geyser erupts about every eight hours. It splashes to a height of 10 feet (3m) for 1 1/2 to more than 10 hours. The weirdly shaped cone, that gives this geyser its name, may have resulted from geyserite covering the trunks of trees that once grew there.

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