...probably for keeping the pigs in...
You know, the more I think about it the more convinced I am that anything with a ditch and a bank higher than the area it surrounds must have been some sort of arena - for heavens sake, what else could it have been? Peter Herring first articulated this yonks ago and his arguments are buried in some thread somewhere.Just to colour Peter's own theory, and with Avebury itself in mind, I suspect that livestock were driven along the Ridgeway from far and near for ritual hunting or slaughter within the Henge itself before being 'processed' at the Sanctuary and then shipped back out again across the West Country - no proof for any of that of course but it's a damn sight more plausible than some wacky idea that the Bank represents an artificial horizon within which astronomical observations were conducted!
Ducks and waits for fallout...
