where is mt. aconcagua
Check Availability. Aconcagua. Piercing the austral winds with its rocky 22,841â summit, Aconcagua is the highest mountain in both the Western and Southern Hemispheres, the tallest peak on earth outside of the Himalayas, and one of the fabled Seven Summits. Trek up the winding Vacas Valley to Aconcaguaâs secluded eastern side, avoiding the larger crowds of the Ruta Normal.