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Grand Prismatic Spring Overlook

Yellowstone NP, Wyoming

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Fun Facts

With a diameter of about 370 feet, it surpasses all other hot springs in the country.

The colors are due to pigmented bacteria in the microbial mats that grow around the edges of the mineral-rich water.

The spring is approximately 160 feet deep, making it one of the deepest in Yellowstone.

The water temperature can reach up to 160°F (70°C), which is too hot for most organisms to survive.

It was described by the Hayden Geological Survey of 1871, which was the first federally funded geological survey of the park.

The name comes from its striking coloration, which resembles the dispersion of white light by a prism.

This basin is one of the many geothermal areas in Yellowstone, featuring geysers, hot springs, and fumaroles.

The overlook provides a stunning aerial view of the spring, showcasing its full spectrum of colors.

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