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Grand Prismatic Spring, Yellowstone National Park

Categories: Hot Springs, Nature & Parks
Inspirock Rating:
4.7/5 based on 1,600+ reviews on the web
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. Put Grand Prismatic Spring and other Yellowstone National Park attractions into our Yellowstone National Park travel itinerary planner, and watch your holiday take shape.
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  • This is a MUST! Going to Yellowstone, have to visit these pools. It's amazing how nature gives her show in this park. Hot water gushing out and falling on the frozen river. The colors of the swimming pools. Very cool! Unforgettable!
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  • This was one of our favorite stops at Yellowstone despite all the tour buses and loads of people. You have to take a breath and pretend you are there with your own friends/family. I thought depending ...  read more »
  • I know but as he from the air or can look from a distance. Therefore better in the afternoon visit even if it is then very crowded here during the peak travel period.
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  • Another must see. The whole experience builds up to Grand Prismatic as you cross the river and pass several other features, impressive in their own right. But Grand Prismatic lives up to the name. The intensity of the colors is amazing and the size. It feels so otherworldly.
  • Even the entrance is awe inspiring. You enter via trail head and boardwalk near the river. The closest geyser pours into the river with a white, yellow, and orange colored path. We saw a hawk grab a fish out of the water as we walked up. Boardwalk goes past one big bright blue geyser pool and through tan and grey algae colored ground. Once you get to the Grand Prismatic Spring you realize how BIG it really is. Bright blue, orange, and yellow. Nothing like you've ever seen. Fight your way through the crowd and take pictures with your family. You won't regret it.
  • One of the most amazing things I have ever seen in my life! Have to go on a warm day at midday to fully enjoy the thing though. That means lots of people around but that's the only (little) pity about it!
  • It's an awesome experience to see this arguably the public face of Yellowstone National Park. The bacteria just transformed the whole place into a colorful canvas. The shade of color is so rich that no technology today could reproduce so one must see in own eyes! Only catch is there always a vapor (the spring is hot water...) covering the spring so difficult to see the whole spring. There is a trail starting from nearby Fairy Fall that will lead to the mountain right behind the spring, where you could get a panoramic view of the spring. However currently the trail is closed to public due to "bear hazard" (according to the sign posted at the trail head)
  • Incredible thermal springs area with flowing hot water to the river. SPECIAL NOTE: Fairy Falls trail is CLOSED as of 3rd July 2016. So no overlooks over the nearby hiking trail above it. Says due to increased bear activity/trail maintenance. Also leave behind your hobby drones for photography, they're banned.
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