Mark Postle

Mark is a core AMS guide and has been working with AMS since 2006. He leads our Denali expeditions, teaches custom mountaineering courses, and works on film production assignments. A climber since the late 1980s, Mark has been instructing and guiding mountaineering since 1994. Based in California, he splits his guiding year between Argentina, Alaska, and as lead guide and staffing manager at Jackson Hole Mountain Guides in Wyoming. Between those jobs, he is an international adventure traveler and photographer. He has climbed and guided in Antarctica (Mt. Vinson), the European Alps, and the Himalaya Range, ascending both Lhotse (8,516 m) and Ama Dablam (6,812 m) in Nepal. An avid technical climber, Mark has climbed over fifty 5.13s, including the Smith Rock test piece, White Wedding (5.14a). We are proud to say that Mark is a regular here at the AMS compound. What he loves the most about guiding on Denali is showing people from all walks of life the skills they need to succeed in the sometimes-harsh mountain environment.