http://www.cropcircleconnector.com/2003/Thornborough/Thornborough2003.html
I don't think the Solstice was the 21st of June this year. The first image discloses the traces of a round structure on the lower left of the crop circle. The close up of the damage done to the wheat in the field, further down this page, is quite convincing - and consistent with other records. There's a link, on the crop circle website, to a Canadian website - that has a useful collection of data !
This sound clip is intended as comedy, incidentally, but it doesn't mean that the interview is not genuine. ( http://www.davidaspinall.co.uk/Gadolinium.mp3 ) (Gadolinium is a Rare Earth element and one of the four elements with 'ferromagnetic' properties). There's some interesting research called 'The Lifter Project' which will show up in most Search engines. Their short films are curious !