Mountains of the Andes (4,000 m and above)

Criteria and general characteristics

A working list of Andean mountains typically includes summits with elevations of at least 4,000 metres (about 13,000 feet). These high peaks occur along the entire length of the range, from Venezuela and Colombia in the north through Ecuador, Peru, Bolivia and Chile to Argentina in the south. Many of the tallest Andean summits are volcanic, while others are part of uplifted crystalline massifs. Compared with the Himalayas, the Andes are lower on average but they are the longest exposed mountain system on the planet; see a comparison with the Himalayas for context.

Notable peaks and categories

• Aconcagua — the highest mountain in the Andes and in the Americas; often cited as the tallest outside Asia.
• Ojos del Salado — the highest volcanic summit in the world and one of the tallest Andean peaks.
• Huascarán, Chimborazo, Illimani — examples of high non-volcanic and volcanic summits that are important regionally for mountaineering and glaciology.
• Other categories include high plateau peaks, volcanoes with persistent fumarolic activity, and heavily glaciated summits that feed regional watersheds.

Some peaks are prominent for technical climbing, others for their cultural or religious significance to local indigenous groups. Chimborazo in Ecuador is widely noted for being the point on Earth farthest from the planet's centre because of equatorial bulge — a geographic curiosity often mentioned alongside elevation records.

Geology, ecology and human uses

The Andes arose through the subduction of the Nazca Plate beneath the South American Plate, producing uplift and widespread volcanism over millions of years. High-elevation zones support unique puna and paramo ecosystems, while Andean glaciers act as seasonal water stores for millions of people. The mountains are also rich in mineral deposits, which has driven a long history of mining, and they are major destinations for scientific research and high-altitude recreation.

When consulting a formal list of Andean peaks at and above 4,000 m, entries are often organized by elevation, by country, and by mountain massif or volcanic complex. Such lists may include coordinates, prominence, first ascent information when available, and notes on accessibility or protection status. For broader comparisons of major mountain ranges and their highest summits see related resources such as comparative mountain listings.