PHOTOGRAPHS OF THE NATURAL WORLD

NATIONAL PARK SCENICS

Thomas Weisensel, Photographer


Picture of Algae Mat Algae-Bacteria Mat
Grand Prismatic Spring
Yellowstone NP, USA
September, 1998
NO. N470
Limited Edition: 100

The Grand Prismatic Spring is large enough to be seen by the Space Shuttle in orbit. The different colors of the algae-bacteria mat formed in the runoff are dependent upon the temperature of the water.


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