I saw this on +Ingress on Google plus a while back and have been meaning to comment on it.
Apparently the game has created what they are referring to as "Crop Circles." Designs which show up on your scanner made up of inventory items.
The one pictured to the right reportedly contained approximately 600 level 1 & level 2 resonators.
I think it would be really cool to find one of these.
So keep your eyes open in case one of these pops up nearby.