صورة:Ice berg.jpg

Ice berg frozen in pack ice [1] Location: Alaska North Slope ; Photo Date: Spring 1949 ; Photographer: Rear Admiral Harley D. Nygren, NOAA Corps (ret.)

This image is in the public domain because it contains materials that originally came from the U.S. National Oceanic and Atmospheric Administration, taken or made during the course of an employee's official duties.

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