The Beauty of Bacteria

A slice of the colorful warm water runoff from Yellowstone's amazing Grand Prismatic Spring. The vivid colors in the spring are the result of microbial mats around the edges of the mineral-rich water. The multicolored layers get their hues from different species of thermophile (heat-loving) bacteria living in the progressively cooler water around the spring.

Sunset at Grand Prismatic Spring

This is the view from the new Viewing Platform of this amazing hot spring, largest in the U.S. and 3rd largest in the world.

The Colors of Yellowstone

The Grand Prismatic Spring is one of the most colorful and captivating sights in the world.

Grand Prismatic Spring

The Grand Prismatic Spring

Walkers strolling along the Boardwalk in the Yellowstone's Midway Geyser Basin.