Hi Folks,
I was looking around Knowlton Henges on Google Earth (the way you do) and noticed some radial lines in a ploughed field to the southwest.
I'm not familiar with pig farming methods but there seem to be similar divisions amongst the piggy field just below them, but they aren't exactly the same. I wondered if anyone might know what they are.

Bung these coordinates in the 'fly to' box

50°52'58.21"N 1°59'55.45"W

Rupert