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.
Create a full itinerary - for free!
Grand Prismatic Spring reviews
-
Grand Prismatic Springs is one of the most amazing sites in the country. Because of its beauty, it is also very busy. 4 years ago we took the boardwalk out to the springs. This time we decided to...
Grand Prismatic Springs is one of the most amazing sites in the country. Because of its beauty, it is also very busy. 4 years ago we took the boardwalk out to the springs. This time we decided to... more »
-
See this from ground level and up above! It was the largest spring we saw on in Yellowstone. Small parking lot so get there early. There is a place to turn off before the spring where you can hike...
See this from ground level and up above! It was the largest spring we saw on in Yellowstone. Small parking lot so get there early. There is a place to turn off before the spring where you can hike... more »
-
Never before I’ve seen such colors in nature
-
Very beautiful but very crowded on weekend
Plan your trip to Yellowstone National Park
Get a personalized tripA full day by day itinerary based on your preferences Customize itRefine your trip. We'll find the
best routes and schedules Manage itEverything in one place. Everyone on the same page.Know more
Popular things to do in Yellowstone National Park
Nature in Yellowstone National Park
Hidden gems in Yellowstone National Park
Trails in Yellowstone National Park
Side trips from Yellowstone National Park
Trips in Grand Prismatic Spring by other users
1 day in Yellowstone National Park
BY A USER FROM UNITED STATES
Grand Canyon of the Yellowstone
Grand Prismatic Spring
Old Faithful
60 days in United States
BY A USER FROM UNITED STATES
Austin
Houston
Yosemite National Park
7 days in Yellowstone National Park, Jackson Hole & Fort Collins
BY A USER FROM UNITED STATES
Yellowstone National Park
Jackson Hole
Fort Collins
60 days in United States
BY A USER FROM UNITED STATES
Grand Canyon National Park
Las Vegas
Yosemite National Park
60 days in United States
BY A USER FROM UNITED STATES
Key West
Hilton Head
Washington DC
15 days in United States
BY A USER FROM HUNGARY
New York City
Washington DC
Yellowstone National Park