Ojos del Salado was even higher than Ojos del Salado. Later measurements using more precise equipment showed that Ojos del Salado is about higher than Pissis. Furthermore, in 2007 a Chilean–Argentine–European expedition organized by Andes Magazine and Azimut 360 performed a survey on both Ojos del Salado and Monte Pissis using more accurate instruments. It found the former to be and the latter Although this fits within recent handheld GPS surveys, which have estimated the mountain to be between and , the vertical error margin of the expedition's equipment, , leaves uncertainty as to the mountain's more precise altitude. Ojos del Salado has
Hagen Mountains Hagen Mountains The Hagen Mountains () are a subrange of the Berchtesgaden Alps. They lie mainly in the Austrian state of Salzburg, the western quarter is in the Bavarian county of Berchtesgadener Land. The steep western flanks of the Hagen lie in Bavaria and drop in height to the basin of the Berchtesgadener Königssee. The mountain range has an area of about 12 kilometres by 10 kilometres. Its highest peaks are located at its perimeter, its interior peaks being slightly lower. The two highest summits are the Großes Teufelshorn () south of the Röth and Kahlersberg (). The Hagen mountains