Snow turns sand dunes in Colorado national park into ‘ethereal world.’ See transformation
A unique combination of sand and snow transformed a Colorado national park into an otherworldly winter wonderland, a stunning ...
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Sailing the Dunes
This story appears in the November 2012 issue of National Geographic magazine. I got my first lesson in the physics of sand dunes in 1998 on an expedition into the Sahara. In order to take aerial ...