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
Deaf climbers with an artificial leg, and a person with epilepsy. Only two of the individuals in the group did not reach the summit. Heidi Zimmer is the first deaf woman to reach the summit of Mt. McKinley in Alaska. She is the first deaf individual to reach the summit of Mt. Kilimanjaro in Africa, as well as Mt. Elbrus in the Republic of Russia which has an elevation of 18,510 feet. She has a goal of completing the seven summits which consist of the highest peak in each continent. This is considered a huge accomplishment in the climbing world. Yasayuki Okobu,