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NOAA Photo Library Image - amer0171

Grand Prismatic Spring in the Midway Geyser Basin. This spring is the third largest hydrothermal spring in the world, approximately 250 X 300 feet in size and about 160 feet deep. The water temperature is 160 F (70 C). The colors on the edges of the spring are due to thermophile microbial mats that grow in the mineral-rich waters.

Image ID: amer0171, NOAA's Small World Collection
Location: Wyoming, Yellowstone National Park
Photo Date: 2011 June 24
Photographer: Dr. David Goodrich, NOAA (ret.)


High Resolution Photo Available





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April 30, 2013