9th Annual Smithsonian Magazine Photo Contest Natural World
A "moon dog", ice crystals in the cirrus clouds causing a ring around the moon, are very rare.

A "moon dog", ice crystals in the cirrus clouds causing a ring around the moon, are very rare.

Photo Detail
Date Taken: 11.2009
Date Uploaded: 11.2011
Photo Location: Washougal, Washington, United States of America
Camera: Canon EOS 5D
Copyright: © Mark Forbes