International Land Artists
http://en.wikipedia.org/wiki/Andy_Goldsworthy
http://greenmuseum.org/content/artist_index/artist_id-36.html
www.chrisdrury.co.uk
http://www.piffard.ch/
www.richardshilling.co.uk
http://www.flickr.com/photos/jrtpickle/sets/72157594582445854/
