Template:POTD/2009-12-15

Picture of the day

Midway Geyser Basin and the Grand Prismatic Spring, a hot spring located in Yellowstone National Park in the U.S. states of Wyoming and Montana. The third-largest hot spring in the world, it is known for its vivid colors, which are the result of pigmented bacteria in the microbial mats that grow around the edges of the mineral-rich water.Photo credit: Mila Zinkova