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
Highest unclimbed mountain before been explored, especially since some high peaks in the Greater Ranges are so remote that they were unknown to local inhabitants when first sighted by European explorers. The world's third tallest peak, Kangchenjunga, has been summited a number of times, but after the first climbers of the peak agreed to honor the wishes of locals and not set foot on the topmost part of the mountain, succeeding mountaineering parties may have followed this tradition. Similarly, Nanda Devi has also been climbed but the topmost summit was not ascended and the primary summit is now off limits to climbers. Machapuchare