Aconcagua Aconcagua Aconcagua (), with a summit elevation of , is the highest mountain in both the Southern and Western Hemispheres. It is located in the Andes mountain range, in the Mendoza Province, Argentina, and lies northwest of its capital, the city of Mendoza, about from San Juan Province and from the international border with Chile. The mountain itself lies entirely within Argentina, immediately east of Argentina's border with Chile. Its nearest higher neighbor is Tirich Mir in the Hindu Kush, away. It is one of the Seven Summits. Aconcagua is bounded by the "Valle de las Vacas" to the north
La Plata Mountains La Plata Mountains The La Plata Mountains are a small subrange of the San Juan Mountains in the southwestern part of Colorado, United States. They are located on the border between Montezuma and La Plata counties, about northwest of Durango. Their name is Spanish for "silver". The peaks of the range are easily visible from U.S. Route 160, which skirts the range on the south. The La Plata River and the Mancos River have their headwaters in the range. The Colorado Trail accesses even towards the northern peaks. The best-known and highest peak in the La Plata Mountains is Hesperus