The Mystery Tree is back along I-17 near Sunset Point. The ADOT Blog shares the history of this holiday tradition: http://bit.ly/2he5mIC
Posted by Arizona Department of Transportation on Friday, December 9, 2016
The Arizona Department of Transportation posted a history of the mystery Christmas tree on its website, and said based on photos from previous years, the decorations are the same each time.
What is a greater mystery to the Arizona DOT is how the tree has survived numerous brush fires over the years.
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