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
Siskiyou Mountains 1910, pears had begun to replace apples as the major fruit grown in the region. In 1927, the Jackson County seat moved to Medford, which had become much larger than Jacksonville. The highest peaks in the range include Mount Ashland at an elevation of , Dutchman Peak at , Siskiyou Peak at , and Wagner Butte at , all of which are in Oregon. The highest peak in the California portion of the range is Preston Peak at . There are also several lower mountains, including Negro Ben Mountain, which reaches . The main drainage basins in the mountains are