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Review:
The Grand Prismatic Spring is located in the Midway Geyser Basin. It is the largest hot spring in Yellowstone Park at 370 feet wide and over 120 feet deep.
Its natural core temperature is 160 degrees Fahrenheit. The most spectacular thing about this spring is its ever-changing colors.
During the summer months its outer edge features reds and oranges, during the winter it naturally changes to a stunning holiday green.
The pool’s interior remains a sparkling azure blue which provides a striking contrast to the edges.
Visitors can view the spring by hiking the Fairy Falls trail, or walking the 0.8-mile boardwalk that passes Excelsior Geyser.
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