Reaching the highest summit in South America requires careful preparation and detailed instruction. R. J. Secor draws upon his extensive climbing experience to give mountaineers all that's necessary to top Aconcagua's 22,841-foot peak. This guidebook features comprehensive information on recommended equipment, safety and health precautions, and conservation issues. It details both the popular and less-traveled routes on Aconcagua reached via the Horcones Valley, South Face, and Vacas and Relinchos Valleys. Also included are a climbing history of Aconcagua and a glossary of valuable Spanish climbing phrases.