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| Old Faithful Geyser: the first geyser in the park to receive a name |
Old Faithful Geyser is one of the biggest geyser in Yellowstone National Park, but the most fascinating about this geyser is how humans can predict with an accurate precision within 5 minutes. If you think about it, how can we predict when the water will be heated by magma underground is hot enough to erupt the next time. It is famous because of its high frequency within 90 mins.