Mark the Mountain Guide author, Mark Seaton, is a British mountain guide who lives with his wife and children in the Chamonix valley. He guides climbers and skiers in the French, Swiss and Italian Alps. Seaton's accomplishments as a professional mountain guide include the first complete unassisted British guided ascent of the Eiger Nordwand with his client Charles Sherwood in 2007. In 2008, Seaton & Sherwood teamed up again to complete a traverse of Mont Blanc via an ascent of Aiguille Blanche de Peuterey, the most difficult 4000-m summit in the Alps. In 1996, Mark led Don Planner, the first blind man to climb
Dan Bryant (mountaineer) With another partner Lud Mahan he was the first to reach the summit via an ice ridge that is now regarded as one of the most difficult routes up the mountain. In 1934 he went to Europe and while attending the London School of Economics he did a great deal of solo climbing in the Alps. This let him meet other climbers and with whom he joined for expeditions. He discovered that his techniques on ice stood good comparison with European climbers, partly because he was used to worse weather conditions. With an American climber he met, Paul Petzoldt, he