Marc Chauvin has a diverse background in mountaineering. His experience began when he hiked the Appalachian Trail in 1975; soon after, he turned to technical climbing. In 1977, he completed a number of big walls in Yosemite, including an early ascent of El Capitan’s Tangerine Trip. He then began guiding in his home state of New Hampshire and became the director of a local climbing school. He started guiding high-altitude climbs in 1986, including numerous trips to Mount McKinley, Aconcagua, the Himalayas, Ecuador, and Peru. Seeing the need for professional standards in mountain guiding, and wanting to get more information himself, he became involved with the American Mountain Guides Association, helping to develop its rock guide program as well as serving as an instructor and examiner. After 30 years of guiding, he became the third AMGA certified IFMGA Guide, the highest level of certification in guiding. Recently, he co-authored The Mountain Guide Manual, published by Falcon Press. He is a Wilderness First Responder and Technician Class Radio Operator, and has completed the AIARE Level III Avalanche Course and the CAA Professional Level I and 2 Course.