Grand Geyser is a fountain geyser in the Upper Geyser Basin of Yellowstone National Park in the United States. It is the tallest predictable geyser known. It …
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Tripadvisor
4.5/5 · 91 reviews
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Sep 24, 2024
There is a nice path to the grand geyser and you will see a lot of other pools and geysers on the way. This one is huge and has like a spout to shoot the water even higher. Pretty cool. Full review by Flyingboy58
Aug 17, 2024
We walked out the trail from Old Faithful and there was a bunch of people sitting by Grand Geyser. We were in the window of eruption time and the old geyser watcher was on alert. We walked on and cam… Full review by lilirishstar
Apr 22, 2024
Grand Geyser erupts much less frequently than Old Faithful with a larger window of error. When I swung by this geyser, the sign said it erupts every seven hour and fifteen minutes, but it can be as m… Full review by jehenson81