thesweetcheat wrote:
Don't know if you've ever visited this site on the Marlborough Downs Roy?
Just had a quick scan through this (very interesting looking) report, it looks as though there have been several further bits of work since the original construction, so maybe the continued whiteness is due to those: http://www.themodernantiquarian.com/site/4062/experimental_earthwork.html
This was dug/built half a century ago - the chalk still shows through in the ditch, which is a much shallower depth than the pre-silted ditch at Avebury. Don't know if this helps with the water question though :)
