Cerro Napa

Cerro Napa is a Pliocene stratovolcano north of the Salar de Coposa, straddling the border between Bolivia and Chile. 
The wide volcano rises about above its surrounding terrain and has a partially preserved summit crater. Part of its slopes are covered with pyroclastics; radiometric dating has yielded ages of 11.9 ± 0.6, 9.99 ± 0.1 and 1.38 million years ago. In the past the volcano was glaciated, with glaciers descending to elevations of . This low elevation probably relates to the easterly position of the volcano and likely correlates to lake highstands in Salar de Coposa, Salar de Empexa and Salar de Huasco.