Riverside Geyser

USA / Montana / West Yellowstone /
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Yellowstone National Park
The most predictable geyser in the world, partly due to minimal connection to any other features. In the last hundred years, its average eruption has varied only slightly, ranging from 5.5 to 6.5 hour intervals. It almost always erupts either 20 minutes before or 25 minutes after the average.
Nearby cities:
Coordinates:   44°28'24"N   110°50'27"W
This article was last modified 18 years ago