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6th Annual Smithsonian Magazine Photo Contest Natural World
Bison at Grand Prismatic Spring in Yellowstone National Park.

Bison at Grand Prismatic Spring in Yellowstone National Park.

Photo Detail
Date Taken: 06.2007
Date Uploaded: 07.2008
Photo Location: Wyoming, United States of America
Camera: Canon PowerShot S1 IS
Copyright: © Timothy Shahan