Mount Cook

A 3,724-metre peak in the Southern Alps of New Zealand, the highest mountain in the country. Mount Cook — known by its Māori name Aoraki, "cloud piercer" — is the dominant peak of the Southern Alps and one of the most photographed mountains in the Southern Hemisphere. The peak is integrated into the cultural geography of the South Island; for the Ngāi Tahu iwi, the principal Māori tribal grouping of the South Island, Aoraki is an ancestral figure whose physical form is the mountain itself. The Treaty of Waitangi negotiations resulted in the dual-naming protocol that uses both Aoraki and Mount Cook as official names.

The first ascent came in 1894 by a New Zealand party led by Tom Fyfe, with George Graham and Jack Clarke. The summit was reached on December 25, 1894 — a Christmas Day climb that has become part of New Zealand mountaineering tradition. The route the team took up the northern flank involved sustained ice climbing on the steep upper face and was technically substantial for the era. The climb pre-dated by months an English-led expedition that had been organized to make the first ascent; the New Zealand team's success established a national mountaineering tradition that has continued through the modern era. Edmund Hillary, who would later make the first ascent of Everest, completed his early climbing on Mount Cook in the 1940s.

The technical difficulty of the standard routes is sustained. The climb involves long glacier approaches, sustained ice climbing on multiple sections of the route, and exposed ridge work at altitude where the maritime weather can produce extreme variability. The route quality has been affected substantially by the partial collapse of the East Face in 1991 — a rockslide that removed approximately 10 metres from the summit elevation and changed the upper mountain's character. The fatality rate has been moderate. The Southern Alps weather pattern, with rapid storm development and short windows of climbable conditions, has produced consistent casualty incidents.

The mountain is climbed by approximately 200 to 300 summit attempts per year. New Zealand mountaineering tradition has produced a substantial number of climbers who have used Mount Cook as the foundation for higher-altitude objectives in Asia and Antarctica. The summit views, on the rare clear days, extend across the Southern Alps to the Tasman Sea on one side and the Pacific on the other.