Guiding since 2000
Extensive climbing and mountaineering throughout the western United States, including California, Colorado, Idaho, Nevada, Utah, and Wyoming. Rock climbing in the Italian Dolomites and Southeast Asia. Climbing and skiing expeditions to South America, Asia, and Alaska. Ski descents in the Western US, Alaska, and Europe. Outdoor educator and ropes course facilitator. Ski patroller and avalanche educator at Aspen/Snowmass in the winter and a full-time mountain guide in the summer for Exum. Mark also guides for Rainier Mountaineering, Inc. and runs climbing and outdoor education programs for the Aspen School District. Certified ski mountaineering guide.