content: I accidentally replied to OP instead of your comment. So here it is again so that you are notified.   Looks to be Rolf Maeder. Here are the links I used to come to that conclusion. http://www.nbcnews.com/news/other/photographer-captures-electrifying-images-rim-grand-canyon-f4B11199563 http://www.rolfmaederphotography.com/en/