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In 2005, Viesturs (No Boundaries: Spirit of Adventure ) completed Endeavor 8000, a campaign to climb the world�s 14 highest mountains without supplemental oxygen. He became the first American to do so. In this memoir, cowritten by veteran mountaineering book author Roberts (On the Ridge Between Life and Death ), Viesturs chronicles his climbing career, starting with his summers guiding for Rainier Mountaineering Inc. and concluding with his success (after several attempts) on Annapurna, a series of peaks in the Himalayas. In between, Viesturs summited Mt. Everest as part of the 1990 International Peace Climb led by Jim Whittaker, the first Ame...Log In or Sign Up to Read More