Grand Prismatic Spring, Yellowstone National Park

4.7
#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
3,127 reviews
Google
4.8
TripAdvisor
  • You need to know to park at Fairy Falls Trailhead and hike about a half a mile up this path to be able to see the Grand Prismatic Spring from above. Met a really nice man that was a travel guide for....  more
    You need to know to park at Fairy Falls Trailhead and hike about a half a mile up this path to be able to see the Grand Prismatic Spring from above. Met a really nice man that was a travel guide for....  more »
  • If you've never been to Grand Prismatic, you have to go! I would say, start on the board walk to get an eye level view then hiking up the trail behind Grand Prismatic to see it from a higher... 
    If you've never been to Grand Prismatic, you have to go! I would say, start on the board walk to get an eye level view then hiking up the trail behind Grand Prismatic to see it from a higher...  more »
Google
  • Never before I’ve seen such colors in nature
  • Very beautiful but very crowded on weekend

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