Laguna Hedionda covers about three square kilometers (1.2mi) and lies at an altitude of 4,121m (13,500ft). It’s one of nine small saline lakes in the Andean Altiplano. In case you missed it, here’s a photo gallery focused on three of those lakes: Hedionda, Honda and Canapa.
A couple more images below.
For the record: today’s Pic du Jour, the site’s 1,033rd straight, was snapped on 27 March 2013.