Pack ice with pressure ridges criss-crossing in seeming random fashion. Imagine taking a dog sled through this terrain on a trip to the North Pole. Some of these ridges are at least ten feet high.

Image ID: arct0379, NOAA At The Ends of the Earth Collection
Location: Alaska, Beaufort Sea
Photo Date: 2007 April 1
Credit: Collection of Dr. Pablo Clemente-Colon, Chief Scientist National Ice Center

Category: Arctic Ice/

• High Resolution Photo Available