The large volcanic complex at the center of this NASA Space Shuttle image (with north to the upper right) is Cerro del Azufre. The 5846-m-high volcano lies just west of the Bolivian border, south of Salar de Ascotán (the light-colored area at the upper right). A youthful lava dome forms a small circular area below and to the right of the center of the image, and the Holocene San Pedro-San Pablo volcanic complex lies at the left-center. NASA Space Station image ISS005-E-8788, 2002 (http://eol.jsc.nasa.gov/).