Chimborazo
The summit of Mount Everest is higher above sea level, but the summit of Chimborazo is widely reported to be the farthest point on the surface from Earth's center, with Huascarán a very close second. The summit of the Chimborazo is the fixed point on Earth that has the utmost distance from the center – because of the oblate spheroid shape of the planet Earth, which is "thicker" around the Equator than measured around the poles. Chimborazo is one degree south of the Equator and the Earth's diameter at the Equator is greater than at the latitude of Everest ( above sea level), nearly 27.6° north, with sea level also elevated. Despite being lower in elevation above sea level, it is from the Earth's center, farther than the summit of Everest ( from the Earth's center). However, by height above sea level, Chimborazo is not the highest peak of the Andes.
Carihuairazo
Carihuairazo was climbed by Edward Whymper, the cousins Louis and Jean-Antoine Carrel, and Ecuadorians David Beltran and Francisco Campaña, during their 1880 Ecuador expedition. It is not entirely clear from Whymper's description, but some people believe that they climbed the "Mocha" (4,960m) and not the "Maxim" summit (5,018m). The first ascent of the "Maxim" summit is therefore attributed to Arturo Eichler, Horacio Lopez Uribe and Jean Morawiecki in 1951. Whymper and his companions ascended in cloudy conditions, believing the east peak (Mocha) to be the higher one. When the clouds cleared on their descent, Whymper said they could see they had climbed the west peak. It is likely that he meant the central summit, which is just west of Mocha.