The snow-mantled surface of Llullaillaco volcano is seen in this NASA International Space Station image (with north to the upper left). The two youthful looking lava flows with prominent flow levees descending the northern and western flanks of the volcano appeared to be of Holocene, but Ar/Ar dating showed them to be of late-Pleistocene age. Llullaillaco is the world's highest historically active volcano.

NASA International Space Station image ISS006-E-13814, 2003 (http://eol.jsc.nasa.gov/).

This image is made available as a Public Domain Work, but proper attribution is appreciated.

Llullaillaco