[FormerLurker]

That looks like it might be authentic, but I can't easily tell without a direct overhead shot.

Impressive in any event..

It does appear similar to another formation, as shown below. That one I'd say is more than likely a hoax if I were to take a guess, due to its lack of symmetry.

[balrog666]

That looks like it might be authentic, but I can't easily tell without a direct overhead shot.

Translation: First, we have to see if they took credit for it.

BWAAAAAAAAHAHAHA.