Expedition climbing

[2] In addition, expedition climbing can also employ multiple 'climbing teams' to work on the climbing route—not all of whom are expected to make the summit—and allows the use of supports such as fixed ropes, aluminum ladders, supplementary oxygen, and sherpa climbers.

[4][5] As a result of having less equipment and supplies, alpine-style teams need to complete their climbing route in days and it is thus considered a riskier form of mountaineering (e.g. if they get trapped in a storm, they have no supplies to wait for the storm to pass).

[1] Expedition-style was the type of mountaineering Sir Edmund Hillary and Tenzing Norgay used in summitting of Mount Everest,[1][2] as well as on most major Himalayan mountains — including many of the eight-thousanders — and is thus sometimes termed Himalayan climbing.

[6][7] Expedition climbing techniques are still widely used by commercial adventure companies to guide less experienced clients on Seven Summits or 'accessible eight-thousander' tours, which has brought new risks (e.g. 1996 Everest disaster).

[5][8] While the use of full expedition-style climbing has almost completely diminished amongst leading mountaineers and climbers and is now only used by commercial guiding companies, many notable first ascents in mountaineering, and particularly those of the eight-thousanders, were achieved by employing large-scale expedition-style climbing techniques, including:[9]