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Folded Vishnu basement rock along the Grand Canyon Trail of Time. Photo by Erin Whittaker, National Park Service.
Originally uploaded in Cutting Edge:Topics:Rates and Time.

Image 64252 is a 531 by 800 pixel WebP
Uploaded: Sep2 15

Last Modified: 2015-09-02 15:40:37
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Erin Whittaker, National Park Service
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