Tunnel valley, Los Glaciares National Park
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Facts and practical information
A tunnel valley is a U-shaped valley originally cut under the glacial ice near the margin of continental ice sheets such as that now covering Antarctica and formerly covering portions of all continents during past glacial ages. They can be as long as 100 km, 4 km wide, and 400 m deep. ()
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Los Glaciares National Park
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Day trips
Tunnel valley – popular in the area (distance from the attraction)
Nearby attractions include: Perito Moreno Glacier.