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The Grand Prismatic Spring is a brilliantly colored hot spring in Yellowstone National Park. It is the largest hot spring in the United States, and the third …
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Tripadvisor
4.7/5 · 3,216 reviews
5-star
78%
4-star
15%
3-star
5%
2-star
1%
1-star
1%
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May 14, 2025
This spring is huge. It has tons of color in the spring and all the tiers around it. It’s about a half mile walk from the parking lot and it’s a pretty easy walk.Full review by Flyingboy58
Jan 5, 2025
Grand Prismatic Spring is absolutely magical! The bright, rainbow colors are so stunning they don’t even look real. Walking along the boardwalk, you can feel the warmth of the steam and take in the a…Full review by Eduardo F
Oct 17, 2024
It is better to view this with the sun shining as the sun's light and heat affect the colors of the spring due to the bacteria in the water. As we parked, the sun went behind a dark cloud; however, t…Full review by RDH2017
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