Northwest_passage.jpg
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Popular Northwest Passage routes. Based on a NASA image at http://earthobservatory.nasa.gov/Newsroom/NewImages/images.php3?img_id=16340 .
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This file is in the public domain in the United States because it was solely created by NASA . NASA copyright policy states that "NASA material is not protected by copyright unless noted ". (See Template:PD-USGov , NASA copyright policy page or JPL Image Use Policy .) | ||
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