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El Chaltén, trekking capital of Argentina

Province of Santa Cruz • Argentina

Los Glaciares National Park area

Los Glaciares National Park protects a vast region dominated by glaciers of the Southern Patagonian Ice Field, in the Santa Cruz Province (Argentina). Of gigantic proportions to our human scale, the current ice cap and glaciers are actually a small sample of what was the last major glaciation, which began 100,000 years ago, was at its peak 20,000 years ago and ended abruptly about 10,000 years or so.

At its greatest progress, the ice completely covered the entire area that can be seen below, revealing only a few hills and elevations above 1000 meters of ice thickness. The erosive force of those powerful ice bulldozers moved in a West-East direction, shaping the two large flattened U-shaped valleys now occupied by Lago Viedma in the north and Lago Argentino in the south.