According to Cult of Mac.com:

Cheesefoot Head is a large natural amphitheater comprising bowl barrows, or Neolithic tombs, and has been the locus of many crop circles. Indeed, this bucolic area was the site of the first crop circle formation to gain widespread international attention back in 1981 and can lay claim to be the birthplace of crop circle interest in modern times.

Some observers have posited that the latest circle, which was spotted in a cornfield by the A272 roadside on August 9th, appears to represent a network — of electricity or computers — interconnecting people and symbolically associated with the forthcoming Age of Aquarius.