I read somewhere online about plans to make a stone miz-maze somewhere up near Helland - Delford Bridge? Did anything ever come of that, and is it visitable?
Yeah - I remember that! Not heard anything since tho...
This may be of relevance/interest: http://www.themodernantiquarian.com/post/5316/images/delford_bridge_menhir.html (although it doesn't really answer your question! :D )
G x