STEVE ALLEN / SCIENCE PHOTO LIBRARY STEVE ALLEN / SCIENCE PHOTO LIBRARY
Glacial lake. Ice floes from a glacier, floating in a glacial lake. This is Lago Grey (Grey Lake) in the Torres del Paine National Park, Patagonia, Chile. The glacier producing this ice, Ventisquero Grey (Grey Glacier), is seen at the far end of the lake at upper left.
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