Ed Viesturs is America's leading high-altitude mountaineer, and has climbed many of the world's most challenging summits. In May of 2004, Ed Viesturs became one of only two non-Sherpa to summit Mount Everest for the sixth time. He is the only American and one of only five people to climb the six highest peaks in the world without supplemental oxygen. Ed Viesturs is currently on a quest to climb the world's fourteen highest mountains without the use of supplemental oxygen, and has successfully climbed thirteen to date. Book Ed Viesturs at Speakers.com. [ Ссылка ]
