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6th Annual Smithsonian Magazine Photo Contest Natural World
A herd of pronghorns graze on a hillside, while one member of the herd serves as look-out on the horizon.

A herd of pronghorns graze on a hillside, while one member of the herd serves as look-out on the horizon.

Photo Detail
Date Taken: 05.2008
Date Uploaded: 07.2008
Photo Location: South Dakota, United States of America
Camera: Canon EOS 30D
Copyright: © Garrett Hall