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
Sierra del Toro Its summits are usually covered in snow in the winter and are among the highest peaks of the Land of Valencia. Therefore there are also numerous ancient ice houses. These mountains have been often devastated by forest fires in hot and dry summers and extensive planting of trees has been undertaken. This mountain range was the scenario of violent battles during the Spanish Civil War (1936–1939) when the fascist troops tried to split the Spanish Republican government territory in two and reach the Mediterranean coast and there are many remains of trenches. Sierra del Toro Sierra del Toro () is