The southwest ridge is the standard documented alpine route on Fletschhorn. It is a mixed snow-and-rock climb with sustained alpine character rather than a hiking route. Conditions can vary significantly with snow cover, and route-finding may be important on the upper ridge. Objective hazards include crevasses on the glacier approach, loose rock, and cornices or windslab on the ridge. The route is generally considered a moderate alpine climb in the classic Swiss style. It is typically climbed from a mountain hut or as a long day from the valley, depending on conditions and fitness.
Route Outline
Fletschhornhütte or valley approach -> upper glacier approach
Gain the southwest ridge from the glacier or snow slopes
Follow the ridge over mixed rock and snow to the summit crest
Continue to the summit of Fletschhorn
Descend by the ascent route
