Some 93km east of Los Angeles you'll find the 116-sq-km Parque Nacional Laguna del Laja. Within the park is the symmetrical cone of Volcán Antuco (2985m). Lava from this volcano dammed the Río Laja, creating the lake that gives the park its name.
The lava fields immediately around the lake form an eerie lunar landscape. Although the volcano may seem quiet, it is not extinct: volcanic activity was last recorded about 25 years ago.