The Midway Geyser Basin in Yellowstone National Park features several geysers and springs. The crown jewel of this basin is the Grand Prismatic Spring, notable for its massive size and spectacular colors. I first saw the spring up close and then I hiked up a hill to an overlook to get a bird’s eye view, which is the best way to appreciate its beauty—truly one of the most memorable sights in the entire park. All of the mist you see in these photos is actually steam rising from boiling water in the geysers and springs.
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Grand Prismatic Spring (viewed from the eponymous lookout trail).
Grand Prismatic Spring (viewed from the eponymous lookout trail).
Opal Pool
Grand Prismatic Spring
Grand Prismatic Spring
Grand Prismatic Spring
Excelsior Geyser Crater
View from Grand Prismatic Spring Lookout Trail.
Boiling water from Excelsior Geyser running down into Firehole River.
Excelsior Geyser
Turquoise Pool
Michael Rappa 