Mountain peak, Ecuador.
The highest peak in the Andean Cordillera Real, elevation 20,702 ft (6,310 m), it was once thought to be the highest in the Andes Mountains (see Mount Aconcagua ). An active volcano, it is heavily glaciated. Many attempted to climb it in the 18th and 19th centuries, but the summit was not reached until 1880, by the English mountaineer Edward Whymper .