elevation, to the El Arenal plateau at elevation and eventually along various routes to Ojos del Salado. Astronomy Astronomers have reconnoitered the volcano for the possibility of creating an observatory there. The landforms such as the gullies and crater lakes and their conditions, and climatic conditions around Ojos del Salado have also led researchers to investigate it as a potential analogue to environments on Mars. See also Cerro El Muerto Cerro Solo Incapillo Incahuasi Laguna Verde List of volcanoes in Argentina List of volcanoes in Chile Lists of volcanoes Llullaillaco Monte Pissis Nevado Tres Cruces Tipas Volcanic Seven Summits Notes References Sources Bibliography External links Complete description of Ojos del Salado in Andeshandbook December 1, 2006, Star Trails at 19,000 Feet - NASA Astronomy Picture of the Day Andes information Ojos del Salado Satellite Elevation Data Peak bagger Summit post Peak list Virtual Aerial Video Stratovolcanoes of Chile Stratovolcanoes of Argentina Seven Second Summits Volcanic Seven Summits Active volcanoes Andean Volcanic Belt Volcanic crater lakes Volcanoes of Atacama Region Mountains of Atacama Region Volcanoes of Catamarca Province Mountains of Catamarca Province Atacama Desert Argentina–Chile border International mountains of South America Highest points of countries Six-thousanders of the Andes Pleistocene stratovolcanoes Holocene stratovolcanoes