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Grand Prismatice Spring in Yellowstone National Park with tourists viewing the spectacular natural scene
Grand prismatic spring at sunny blue sky, , Yellowstone National Park, USA.
Grand Prismatic Spring in Yellowstone National Park
Aerial view of Grand Prismatic Spring in Yellowstone National Park, featuring vivid hues of orange, yellow, and turquoise caused by microbial activity in the thermal pool
Morning Glory pool at Yellowstone National Park, Wyoming, USA.
Grand Prismatic Springs in Yellowstone
Geysers at Midway Geyser Basin Trailhead, Yellowstone National Park.
Yellowstone National Park, Wyoming, USA
Located in Yellowstone National Park, Wyoming, the largest hot spring in the United States and third larges in the world.  The amazing colors are actually the heat loving microbes in the pools.
National Park Yellowstone in Wyoming and Montana, USA
Grand Prismatic Spring in Yellowstone National Park
Spectacular panoramic views of Grand Prismatic Geyser in Yellowstone National Park, Wyoming Montana. Midway Geyser Basin. Great hiking. Summer wonderland to watch wildlife and natural landscape. Geothermal.
Image of Steam covers iconic Grand Prismatic Spring in Yellowstone winter
Yellowstone National Park, Wyoming, United States: the terraced formations surrounding Grand Prismatic Spring in Yellowstone National Park's Midway Geyser Basin form through the precipitation of silica minerals, known as sinter, from the spring's hot alkaline runoff water as it cools while flowing outward in channels toward the Firehole River. This process creates layered, stepped deposits that build up over time, preserving the shapes and structures of underlying microbial mats. These terraces, often described as gracefully contoured shoulders along the runoff streams, host communities of thermophilic bacteria and archaea that produce the spring's rainbow colors—ranging from orange and red carotenoids in warmer zones to green chlorophyll in cooler areas—through temperature-dependent pigmentation. The sinter encases successive generations of these heat-loving microorganisms, forming a geological record of ancient microbial life in this extreme hydrothermal environment, which has evolved over thousands of years.
Geysers at Midway Geyser Basin Trailhead, Yellowstone National Park.
Path around Grand Prismatic Geyser in Midway Geyser Basin. Yellowstone, USA
Located in Yellowstone National Park, Wyoming, the largest hot spring in the United States and third largest in the world.  The amazing colors are actually varying species of heat loving microbes in the pools - each having a different color and existing at a different temperature.
Sunset at Grand Prismatic Spring Yellowstone National Park, Wyoming, USA.
A vertical shot of the paint pots at Yellowstone.
Grand Prismatic Spring is a geothermal wonderland home to numerous hot springs, mud pots, and geysers
Various forms and colors of Grand Prismatic Spring in Yellowstone National Park
Grand Prismatic Spring in Yellowstone National Park
Grand Prismatic Springs at Yellowstone National Park
Yellowstone National Park, Wyoming, United States: the Grand Prismatic Spring, situated in Yellowstone National Park's Midway Geyser Basin, is the largest hot spring in the United States and the third largest globally, spanning approximately 370 feet in diameter and 160 feet in depth while discharging about 560 gallons of 160°F water per minute into the Firehole River via runoff channels. These channels, formed by the spring's outflow, deposit silica minerals as sinter, gradually building terraced formations that preserve ancient microbial mats beneath newer layers. The intense colors arise from thermophilic bacteria and algae in the runoff, where temperature gradients influence pigment production: warmer areas favor orange and red carotenoids, while cooler zones promote green chlorophyll. This microbial ecosystem, thriving in extreme heat, offers insights into early Earth life forms.
Plain with spring water and mist around Grand Prismatic Geyser in Midway Geyser Basin. Yellowstone, USA
The world famous Grand Prismatic Spring in Yellowstone National Park, Wyoming, USA. Bright rainbow-colored microbial mats surround the hot spring with steam rising into the air, framed by evergreen forests and a deep blue sky. This breathtaking geothermal wonder is one of the most iconic natural landmarks in America and a top destination for travel, science, and exploration themes.
Vibrant colors created by thermophiles in Yellowstone's iconic G in United States, Wyoming, Lake
Closeup of Grand Prismatic Spring, Midway Geyser Basin, Yellowstone National Park, Wyoming, USA
Close-up aerial view of Grand Prismatic Spring in Midway Geyser Basin, Yellowstone National Park, Wyoming, USA. It is the largest hot spring in the United States
Grand Prismatic Spring Overlook in Yellowstone National Park, Wyoming, USA.
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