Mark is native to Washington. He was raised by wolves in the North Cascades where he was introduced to alpine climbing and deep powder skiing. After closing his geophysics textbook for the last time, he joined the league of homeless, car-dwelling, nomadic, mountain guides and began lapping countless classics with clients in the Cascades and the High Sierra. After a decade of hopping from crag to glacier, Mark received his IFMGA/AMGA guiding certification and now is the director of his own boutique guide service, The Mountain Bureau LLC, a booking network for climbing and ski touring trips worldwide. Mark calls Ballard, Wash., home.