Colorful is one of the many adjectives people use when describing the Arizona desert.  The colors change from hour to hour, day to day, season to season.
  The White Tank Mountains display the whole array, painted on a colossal bulge of rock, domed up during the Period.  These rocks occur together here with an ancient intrusion of that cooled about the time the dinosaurs were killed off, at the end of the Period.
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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 "The Rocks of the Valley of the Sun" for more view locations.
   You can also send this as an E-Postcard to your friends!