Cambojnr, thanks for the feedback. Maybe I should just give up my full time job so that I can concentrate on completing the map with every site in the country - particularly in the North East as I only live about 300 miles away from there. Alternatively you could recommend to the poster that he look at your map of sites. Oh hold-on, he was after sites close to the M25, in the south-east, there's loads of those on my map. I hope he appreciated the usefulness of your post.