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
Ore Mountains Valley zone. The western part of the Ore Mountains is home to the two highest peaks of the range: Klínovec, located in the Czech part, with an altitude of and Fichtelberg, the highest mountain of Saxony, Germany, at . The Ore Mountains are part of a larger mountain system and adjoin the Fichtel Mountains to the west and the Elbe Sandstone Mountains to the east. Past the River Elbe, the mountain chain continues as the Lusatian Mountains. While the mountains slope gently away in the northern (German) part, the southern (Czech) slopes are rather steep. The Ore Mountains are oriented