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Which is the world's largest geyser?
- Old Faithful
- Steamboat Geyser
- Grand Geyser
- Castle Geyser
Answer: Steamboat Geyser
Steamboat Geyser in Yellowstone National Park, USA, is the world's tallest active geyser, with eruptions reaching 90-120 meters. Though unpredictable, it has been erupting frequently since 2018. Old Faithful is more regular but shorter.