A question which maybe VBB will be clued up on but of course open to all.
When the modern-day B4003 running from the A4 to the southern entrance of Avebury's Great Circle was constructed why did it not avoid the West Kennet Avenue at the Avebury end instead of running through the bend in it? I know the road is believed to have run across the Avenue at the southern end as well but I suppose it had to cross it at some point but why where the stones, or known line of the stones, were evident at the time (or were they?)