Very odd you should mention this place out of the blue like that, a guy I was chatting to at the exhibition was telling me about the area and last week I got some information sheets from him in the post. It's actually about Rathrá specifically but there's a map of the whole area as well. Will definitely have to spend a long summer day here soon.

This aerial photo is of Rathrá, will have to check this one out up close:

http://img.photobucket.com/albums/v463/CianMcLiam/rathra.jpg