In 1929, Glenn Exum began climbing in the Teton Range with Paul Petzoldt, who had been guiding small numbers of clients since 1925. Together they formed a partnership that became the Petzoldt-Exum School of American Mountaineering. After guiding and teaching for 80 years, Exum Mountain Guides enjoys an unmatched reputation for excellence. The guide service has grown since those early years, but we still hire guides who are able to teach and inspire others. Our experience is now international. Collectively, our guides have climbed in the United States, Alaska, the Alps, the Andes, Antarctica, China, Tibet, the Karakoram, and, of course, throughout the Himalayas. Come climb with the Exum Guide Service and School of American Mountaineering.