Cerro Machín is located in Colombia

Cerro Machín is a stratovolcano located in Tolima Department, Colombia. Cerro Machin is a volcanic plug that is approximately the same age (1,000,000+ years) as the Ruiz-Tolima Massif and has the appearance of being part of that volcanic system. Its sisters are Nevado del Tolima, 17,060 feet (5,200 m); Santa Isabel, 16,240 feet (4,950 m), Nevado del Ruiz, 17,457 feet (5,321 m), plus nine other lesser volcanoes and a 10,000 feet (3,000 m) volcanic South Wall containing in excess of thirty volcanic domes.

• http://en.wikipedia.org/wiki/Cerro Machín