The mountain peak that is the tallest in the Americas is Aconcagua, located in the Andes range in Argentina. Standing at 6,961 meters (22,838 feet), Aconcagua is not only the highest mountain in South America but also the highest peak outside of the Himalayas. It attracts climbers from around the world, offering various routes for ascent. The mountain's iconic status and stunning scenery make it a significant destination for adventure seekers and mountaineers.