Sierra Nevada, also known as Sierra Nevada de Lagunas Bravas, is a volcanic complex which lies in both Chile and Argentina. Some of the complex is of Holocene age, but there is also an older Pleistocene volcanism evident. The older material is to the east in Argentina. The complex lies in one of the most remote regions of the Andes, making study difficult. It covers a total area of 225 km². Sierra Nevada is a remote peak on the Chile-Argentina border. As such it was probably the second last 6000m+ peak in the Andes to be climbed, the first recorded ascent being in December 2000.
- Elevation: 6,127 m (20,102 ft)