re: astrological imagery in Celtic sacred sites and hill figures: there is a very interesting book on this subject from the 1970s called "The Glastonbury Zodiac." I believe it is out of print but I have seen it is bookstores occasionally...the basic premise is that there is a circle/wheel shaped imprimatur/map composed of twelve sacred sites whose images suggest they are connected to the now-familiar western zodiac...as to which came first??? I have only skimmed this book so I don't know what the last word is...I almost bought it at a local new age bookstore not long ago, they may still have a copy...

also there is a new book out on the subject of hill figures called "The Lost Gods of Albion"

peg