Grand Prismatic Spring, Yellowstone National Park

4.7
#3 of 82 in Parks in Yellowstone National Park
Hot Spring · Nature / Park
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
3,028 reviews
Google
4.8
TripAdvisor
  • Seeing the Grand Prismatic Spring was definitely one of the highlights of our time in Yellowstone. The short hike up to the overlook is very much worth it!  more »
  • Don't miss a single pull off at Yellowstone National Park as the pandemic is here and you are not allowed to do much else.  more »
  • it was very pretty to see in person. gives you a different outlook when you see it in person. We reccomend hiking to the overlook to see the whole big picture  more »
Google
  • Amazing place! One of the world’s largest and deepest hot springs. Beautiful!
  • There is a hike to a top overlook that is highly recommend. Wonderful colors. Amazing.
  • This is the most beautiful thing I’ve ever seen in nature! Well worth the hike and make sure you hike up the side of the mountain for the overview it’s well worth it!
  • Absolutely must-see in you are in Yellowstone. Gorgeous views of the lake and mountains, and also fascinating look at geology.
  • An amazing experience!! It is worth your time to take the walkway to this hot spring. However, hold onto your hat!! And prepare yourself for a "steam" bath!! The colors are remarkable!!

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Plans to Grand Prismatic Spring by other users

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