http://www.modernhiker.com/2014/10/21/instagram-artist-defaces-national-parks/
Hope this link works. Apparently it is being investigated by the National Park service. She went on a tour of some of the best parks in the west and defaced them by putting some really ugly artwork on the rocks with acrylic paint. When called out of Facebook or whatever site she posted on for using permanent paint she said "I know I'm bad ". Now she is deleting her pics and trying to hide. I hope they catch her and make her clean every last ugly piece on her own dime.