As hot mineral water seeps out of the Grand Prismatic Spring in Yellowstone National Park it leaves tiny layers of minerals. The heat of the water provides an ideal environment for bacteria, which grow in colorful mats over the wavy mineral deposits. The end result is an amazing display of color and texture.
The constant bubbling of mineral infused, hot water leaves colorful, thin layers of sediment throughout the geothermal areas of Yellowstone National Park. The hot spring in the foreground of this photo reminds me of a lunar crater while the colorful cliff and distant steam behind it add to the other-worldliness of the scene.