http://galleries.burningman.org/filestore/4/2/6/4/9_0bf58680fe3a011/42649pre_9e8327b232e1788.jpg?v=2013-08-23+21%3A07%3A40
Geology Talk at the Earth Guardian pavilion
http://galleries.burningman.org/filestore/4/2/6/4/9_0bf58680fe3a011/42649pre_9e8327b232e1788.jpg?v=2013-08-23+21%3A07%3A40
Geology Talk at the Earth Guardian pavilion