Trip Planner:   USA  /  Wyoming  /  Yellowstone National Park  /  Nature  /  Grand Prismatic Spring

Grand Prismatic Spring, Yellowstone National Park

(4.7/5 based on 1,800+ 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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19 days in United States BY A USER FROM UNITED KINGDOM May, popular PREFERENCES: May ATTRACTION STYLE: Popular PACE: Medium 9 days in Wyoming BY A USER FROM UNITED STATES September, slow & easy, popular PREFERENCES: September ATTRACTION STYLE: Popular PACE: Slow & easy 16 days in United States BY A USER FROM SWITZERLAND July, culture, outdoors, romantic, beaches, popular PREFERENCES: July, culture, outdoors, romantic, beaches ATTRACTION STYLE: Popular PACE: Medium 8 days in Wyoming BY A USER FROM UNITED STATES September, outdoors, relaxing, romantic, popular PREFERENCES: September, outdoors, relaxing, romantic ATTRACTION STYLE: Popular PACE: Medium 12 days in United States BY A USER FROM CANADA May, popular PREFERENCES: May ATTRACTION STYLE: Popular PACE: Medium 7 days in Yellowstone National Park BY A USER FROM UNITED STATES July, teens, popular PREFERENCES: July, teens ATTRACTION STYLE: Popular PACE: Medium 7 days in Yellowstone National Park & Colorado Springs BY A USER FROM UNITED STATES July, teens, culture, outdoors, historic sites, museums, fast-paced, hidden gems PREFERENCES: July, teens, culture, outdoors, historic sites, museums ATTRACTION STYLE: Hidden gems PACE: Fast-paced 6 days in Yellowstone National Park BY A USER FROM INDIA May, outdoors, relaxing, popular PREFERENCES: May, outdoors, relaxing ATTRACTION STYLE: Popular PACE: Medium 9 days in Yellowstone National Park, Portland & Crater Lake National Park BY A USER FROM UNITED STATES March, kids, relaxing, historic sites, popular & hidden gems PREFERENCES: March, kids, relaxing, historic sites ATTRACTION STYLE: Popular & hidden gems PACE: Medium 11 days in Yellowstone National Park & Portland BY A USER FROM UNITED STATES March, kids, relaxing, historic sites, popular & hidden gems PREFERENCES: March, kids, relaxing, historic sites ATTRACTION STYLE: Popular & hidden gems PACE: Medium 15 days in United States BY A USER FROM UNITED STATES June, teens, kids, popular PREFERENCES: June, teens, kids ATTRACTION STYLE: Popular PACE: Medium 15 days in Yellowstone National Park BY A USER FROM UNITED STATES June, teens, kids, beaches, historic sites, shopping, popular PREFERENCES: June, teens, kids, beaches, historic sites, shopping ATTRACTION STYLE: Popular PACE: Medium
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Reviews
TripAdvisor
  • we loved this place! We visited in October and because of the cooler temperatures the hot springs created ALOT of steam in the air. We could hardly see the walk ways. Good thing there are railings. Bu...  more »
  • Its a must visit place. The beauty of this place is hard to express in words. This place needs a bit of planning and improvisation though. If its a cloudy day then you may not be able to see all this ...  more »
  • You have to see just jumping the Grand Prismatic in Yellowstone! It is extremely full and unfortunately you have no opportunity to see the entire source from above, but even so it is extremely impressive!
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Google
  • Absolute fantastic. the facilities were great. visit early in the day to get parking and uncrowded view to enjoy the spring. Try to hike the near mountain to get a spectacular view of the spring from top.
  • 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.
  • The colors in the springs are so beautiful. Love this place. A must see
  • 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.
  • So beautiful a must see..small parking lot so get there early..some parking on side of road. The pools are gorgeous..if windy hold onto your hat saw quite a few on geysers can't get them....you may fall they and loose limbs or your life. You will not be disappointed..stop in.