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090825_9168

Dr. Tad Pfeffer, a glaciologist with the University of Colorado, and photographer James Balog, of the Extreme Ice Survey, photograph a calving event from camp at Columbia Glacier, Chugach Mountains, Alaska.

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Filename: 090825_9168.JPG
Copyright: Ethan Welty
Image Size: 1000x667 / 230.4KB; www.weltyphotography.com; North America USA Alaska Columbia Glacier color image outdoors horizontal day two people adult man taking pictures science research photographer glacier mountain alpine
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Dr. Tad Pfeffer, a glaciologist with the University of Colorado, and photographer James Balog, of the Extreme Ice Survey, photograph a calving event from camp at Columbia Glacier, Chugach Mountains, Alaska.