The mysterious sand circles found on the banks of the Rio Grande have turned out to be created by a local artist, and not the work of Aliens!
The work of art, called “Inner Sanctum”, was crafted by Michael Alford who said “Art is a mystery, but this mystery is man-made, not alien-made,”.
On hearing that the circles where man-made, some visitors had expressed anger at what they called a hoax, but Alford confessed that it was not meant as a hoax, and that he had spent the last month and a half making the circles in broad daylight.
Source: El Paso Times [link].
External Links:
Sand circles created by artist, not aliens
Riverbed circles spawn UFO speculation