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Why Yosemite Valley Looks Unlike Anywhere Else - Explained By Geographers

Ancient Volcanic Foundations Created The Raw Material Yosemite looked very different one hundred million years ago. Towering ...
Science Daily

Evolution of Alpine landscape recorded by sedimentary rocks

Rock avalanches and torrents started to form V-shaped valleys in the Swiss Alps approximately 25 million years ago. This landscape contrasts to the flat and hilly scenery, which characterized the Alps ...