Isn't that 'altar' rather than 'alter'?
:-)#
Pete G is really the man to answer this one. He's knows far more than most about Avebury.
Kammer x
shouldn't that be "he knows"?
&;-P
let's not get started on typos, it's so annoying when you have posted and are unable to altar them afterwards. (snigger)
Korekting Spelin ;-)