About the Author

PETER MATHIS is a sports and landscape photographer. He is the recipient of a number of awards, including the 2007 Hasselblad Master Prize and the 2008 Master of European Photography Prize. He lives in Hohenems, Austria. TOM DAUER is a journalist, filmmaker, producer, and author based in southern Germany, near the Alps. An avid mountaineer, he regularly writes for 'National Geographic Magazine' and other outdoor publications.