The Cerro Bayo volcanic complex lies along the Chile-Argentina border east of the Salar de Gorbea, the light-colored area at the left-center portion of this NASA Landsat image. A young well-preserved crater can be seen NE of an older snow-covered center (bottom-center). A younger northern center along the national border has a well-preserved 400-m-wide crater.
González-Ferrán, Oscar (1995). Volcanes de Chile. Santiago, Chile: Instituto Geográfico Militar. p. 640 pp. ISBN978-956-202-054-1. (in Spanish; also includes volcanoes of Argentina, Bolivia, and Peru)