Major cities are the capital Guatemala City, elevation 1,500 m (Central Highlands), Antigua Guatemala, elevation 1,530 m (Central Highlands), Quetzaltenango elevation 2,350 m (Western Highlands) and Puerto Barrios on the Caribbean coast. The largest lake Lago de Izabal (589.6 km²), is close to the Caribbean coast. Volcán Tajumulco, 4,220 m, the highest point in Central America, is located in the western department of San Marcos.