Grand Prismatic Spring, Hot spring in Yellowstone National Park, USA
Description: The Grand Prismatic Spring is the largest hot spring in the United States and the third largest in the world.
History: It was first described in detail by geologists working in the Hayden Geological Survey of 1871.
Culture: The spring's vivid colors inspired its name, which refers to the optical prism that breaks light into its constituent spectral colors.
Practical: Visitors can view the spring from a boardwalk or from an overlook on a nearby hill.
Did you know ?: Its striking coloration is due to pigmented bacteria in the microbial mats around the edges of the mineral-rich water.
The Grand Prismatic Spring is the largest hot spring in the United States and the third largest in the world.
Excelsior Geyser is a massive hot spring characterized by its turquoise blue water.
Turquoise Pool is a vibrant blue hot spring renowned for its stunning color and clarity.
Opal Pool is a vibrant hot spring located in the Midway Geyser Basin of Yellowstone National Park.
White Dome Geyser is one of the most prominent geothermal features of Firehole River's Lower Geyser Basin.