Caption: GREENLAND -- An iceberg at the edge of the Baffin Bay's sea ice is just one of the many sights three Airmen from Thule Air Base, Greenland, witnessed recently during a six-day dog-sledding expedition. (U.S. Air Force photo by Tech. Sgt. Dan Rea) Source: http://www.af.mil/media/photodb/photos/040520-F-0000C-003.jpg
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