Ojos del Salado The elevation of Ojos del Salado has been the subject of debate. The mountain is hidden behind other peaks and thus its height was not appreciated in early research until 1937, when the mountain was climbed by Polish climbers. A 2006 article in Andes Magazine offered that Ojos del Salado may be higher than Aconcagua, although the argument was premised on older, less accurate altitude surveys. The results of these older surveys assigned Ojos del Salado an elevation of , which would have made it nearly higher than Aconcagua. As early as 1955, an estimate was made that the elevation
Lists of mountains and hills in the British Isles not be considered peaks or mountains under UIAA definitions. With the exception of Pillar Rock, a rocky outcrop on Pillar in the Lake District, the peaks of all of the Nuttalls can be reached without resort to rock climbing. , 302 people are known to have completed the list, though this includes some who did not climb Pillar Rock, which the authors permit. They have also announced that Tinside Rigg and Long Fell (added to the list in 2016) need not be climbed as they are in a restricted area of Warcop Artillery Range. The Wainwrights are mountains or hills