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Cross-bedding in sandstone on the Colorado Plateau.

   How does one know that this is indicative of an ancient desert setting?  What you see here up-close is called cross-bedding, and it shows consecutive layers of wind-blown sand, cutting each other off as ancient winds shifted in direction, in a scene not unlike today's Sahara Desert.
   This type of sandstone is described as "eolian" or "aeolian" by geologists, and the image here shows a section about 3 feet (1 meter) in height.
  
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   See the GeoHistory page if you want to know more about why the landscape looks the way it does, or return to the map of "Sedona and the Verde Valley" for more view locations.
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