Elizabeth W.
9/21/2025
The spring is of course beautiful & amazing. The bathrooms are beyond disgusting. There was feces everywhere! Running down the garbage cans, all over the floors, all over the toilet. I tried...
Grand Prismatic Spring
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Yellowstone National Park, WY 82190
Grand Prismatic Spring, located in Yellowstone National Park's Midway Geyser Basin, is renowned as the park's largest hot spring, measuring approximately 370 feet in diameter and over 121 feet deep. This iconic thermal feature, described by fur trapper Osborne Russell in 1839, holds the distinction of being the earliest identified thermal feature in Yellowstone.
Visitors to Grand Prismatic Spring can marvel at its vibrant colors and unique geological formations, immersing themselves in the fascinating world of hot spring ecology and scientific research. With a rich history dating back to the early exploration of the region, this natural wonder continues to captivate and inspire young scientists and nature enthusiasts alike.
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Reviews
4.553 reviews
Rees's R.
9/29/2025
Grand Prismatic Spring in Yellowstone National Park is truly one of the most breathtaking natural wonders you'll ever see. Located in the Midway Geyser Basin, this geothermal giant is the largest...
Gabriela M.
9/15/2025
One of my favorite spots at YNP! I recommend you visit mid day to experience the full colors of grand prismatic. You can also hike the fairy falls hike to the overlook. It's about 1.5 miles...
Frank M.
7/6/2025
This is a beautiful sight to see and one of the most iconic at Yellowstone. Few Things to note: Boardwalk gets crowded I went on a cold day in the summer (it was snowing) could barely see the...
Yvette M.
6/13/2024
A beautiful sight to see from the boardwalk area and from above. You'll most likely see cars parked alongside the road as you near the parking lot. We visited on June 12th at around noon, and cars...
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