[mountainlion]

I can imagine some kids making a remote control vehicle that is computer operated with GPS location tracing out some graphic design.

[Average Al]

Well they have GPS controlled tractors already so this may be the case.

[Outlaw Woman]

What could be the source of these creations? I’ve heard several theories but in the end nothing sounds logical. The formations are huge, and appear to contain perfectly straight lines, radii etc..

This would leave out a single person because of the time it would take to create. Machinery would be spotted wouldn’t it?

Has anyone heard of a reasonable theory to how these are created?

Huge mystery to me.