Thank you http://2012thebigpicture.wordpress.com/ for sharing this. One possible symbolic interpretation to this Crop Circle is the Vesica Piscis. This symbol usually represents the divine feminine and a birthing.
Here is a link to an image comparing this symbol to the Feminine anatomy (it is graphic so I have decided not to include in the post.) I strongly suggest you do look at the comparison between the female anatomy and this crop circle as there is definitely a similarity.
Here is a Vesica Piscis:
Here is the crop circle: