Riverside Geyser Photos

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Riverside Geyser is a geyser in Yellowstone National Park in the U.S. state of Wyoming. The geyser is located on the Firehole River within the Upper Geyser Basin. The geyser shoots steam and water to heights of 75 feet (23 m) in an arch over the river, sometimes causing brilliant rainbows. The eruptions occur every 51⁄2 to 7 hours.
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Riverside Geyser - Yellowstone - Wyoming - USA