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Grand Prismatic Spring, Yellowstone National Park

4.8
#3 of 83 in Parks in Yellowstone National Park
Hot Spring · Nature / Park
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At nearly 113 m (370 ft) across and 37 m (121 ft) deep, Grand Prismatic Spring holds the title of the largest hot spring in America and one of the largest in the world. A premier attraction at Yellowstone National Park, the spring's fame traces back to early explorers and fur trappers who first noted it in the early 1800s. The boiling pool constantly steams and bubbles, with its vivid, rainbow-like appearance--the result of pigmented bacteria. To get a close-up view, walk along the park's boardwalk, which leads to a route close to the water's edge. Stay on the path, as the high temperatures of the pool can be dangerous. Plan to visit Grand Prismatic Spring and other customer-reviewed, writer-recommended Yellowstone National Park attractions using our Yellowstone National Park travel route app.
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Grand Prismatic Spring reviews

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TripAdvisor traveler rating
TripAdvisor traveler rating 4.5
3,161 reviews
Google
4.9
TripAdvisor
  • The Grand Prismatic Spring is truly a wonder to behold! The steam rising from the water creates a mystical atmosphere. The crowds can be overwhelming at times, it's worth braving the crowds to... 
    The Grand Prismatic Spring is truly a wonder to behold! The steam rising from the water creates a mystical atmosphere. The crowds can be overwhelming at times, it's worth braving the crowds to...  more »
  • Beyond real! Amazing art of the nature You might get a little frustrated because all the pictures we see is from the top so you wont have a full perspective but yet, fantastic 
    Beyond real! Amazing art of the nature You might get a little frustrated because all the pictures we see is from the top so you wont have a full perspective but yet, fantastic  more »
Google
  • Grand Prismatic Springs was by far the highlight of my trip through Yellowstone! The entire boardwalk loop around the whole thing just left you awestruck by its natural beauty. The vibrant array of colors was surreal to see in person and the photos captured by your cameras will probably never do it full justice. There were also plenty of local guides to give you pertinent information as you make your way around the loop. Parking was a nightmare however but that was to be expected I suppose...
  • If you are visiting the most magical National Park the. You must stop at Grand Prismatic Springs to check out the amazing colors and hot spring pools. You can get great pictures from the boardwalk or there is a trail head that leads you up about a mile hike to a great view for better views. YOU MUST STAY ON THE BOARDWALK. These are very delicate ecosystems and when you walk on them it destroys them or worse yourself. And remember if you see wildlife stay a minimum of 25 yards away.

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