Tenaya Canyon and part of Yosemite Valley as seen from Glacier Point in Yosemite National Park. Tenaya Creek likely started to scour this granite canyon below Half Dome about 5 to 10 million years ago ...
The iconic, glacier-carved features of Yosemite Valley appeared sometime during the past 50 million years, when Sierra Nevada granite was first exposed, but geologists have not been able to establish ...
First-time visitors to Yosemite Valley gape in awe at the sheer granite wall of El Capitan and the neatly sliced face of Half Dome, aware, perhaps vaguely, that rain and glaciers must have taken a ...
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