Clouds and Dunes, Great Sand Dunes National Park, Colorado  © Doug Hickok  All Rights Reserved  (Click on image for larger view.)
 
 
  The clouds hovering above these 700 foot high dunes appear a bit surreal,  like a cut and paste addition to the image. But they are real nonetheless,  helping to make a photograph rich in contrasting texture and form.
 
 
 
 
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