Natural-colour image of Parque Nacional Llullaillaco. Some <a href="//commons.wikimedia.org/wiki/Snow" title="Snow">snow</a> and <a href="//commons.wikimedia.org/wiki/Ice" title="Ice">ice</a> linger on the slopes of Llullaillaco, but little vegetation appears in this landscape. The clearest patch of <a href="//commons.wikimedia.org/wiki/Green" title="Green">green</a> occurs in a <a href="//commons.wikimedia.org/wiki/Lake" title="Lake">lake</a> east of the park. This landscape is a combination of mostly bare peaks and <a href="//commons.wikimedia.org/wiki/Salt" title="Salt">salt</a> pans—the large, nearly <a href="//commons.wikimedia.org/wiki/White" class="mw-redirect" title="White">white</a> areas south and west of the <a href="//commons.wikimedia.org/wiki/Volcano" title="Volcano">volcano</a>.
Robert Simmon
<a rel="nofollow" class="external text" href="http://earthobservatory.nasa.gov/IOTD/view.php?id=72520">NASA Earth Observatory</a>