Filed Mar 02.07 
The sand circles discovered in the Rio Grande in the Upper Valley are not the work of aliens after all but of a local artist named Michael Alford.
Alford said he spent a month and a half digging up the concentric circles with the help of students from the El Paso Country Day School.
"Art is a mystery, but this mystery is man-made, not alien-made," Alford said.
This afternoon, dozens of people went out to the site to see the circles for themselves.
The set of previously unexplained circles was found this week in the middle of a dry Rio Grande. The largest circle contains three other circles, each made by 8-inch deep trenches on a sand berm between Artcraft and Borderland roads in the Upper Valley.
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(Original headline: Human, not E.T., takes credit for sand circles )