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Splinters of ice peel off from the front of the Perito Moreno Glacier into the Lago Argentino, in the Parque Nacional Los Glaciares ( Los Glaciares National Park), 80 km (50 miles) west of El Calafate city, in the Patagonian province of Santa Cruz, March 25, 2007.(REUTERS/Enrique Marcarian)Read More

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A group of climbers trek on Perito Moreno's surface in Patagonia, near the city of El Calafate, southern Argentina, March 29, 2007. (REUTERS/Enrique Marcarian)Read More

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An overview of the Perito Moreno Glacier at the Lago Argentino, in the Parque Nacional Los Glaciares (Los Glaciares National Park), 80 km (50 miles) west of El Calafate city, in the Patagonian province of Santa Cruz, March 25, 2007. REUTERS/Enrique Marcarian (ARGENTINA)
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A group of climbers trek on Perito Moreno's surface in Patagonia, near the city of El Calafate, southern Argentina, March 29, 2007. (REUTERS/Enrique Marcarian)Read More

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A mountaineer climbs by the Perito Moreno's surface glacier in Patagonia, near the city of El Calafate, southern Argentina, March 29, 2007. (REUTERS/Enrique Marcarian)Read More