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
Salmon River Mountains rising to . The ten highest peaks are all in the eastern subrange, while the highest peak in the central mountains is Big Baldy, at . The highest mountain in the western subrange is North Loon Mountain, at . Salmon River Mountains The Salmon River Mountains are a major mountain range covering most of the central part of the U.S. state of Idaho. The range is over long and its boundaries are usually defined by the Salmon River and its large tributary forks. Part of the central Rocky Mountains, the entire range lies west of the Continental Divide of the