The south-west ridge is a documented alpine route on Dent d'Herens and is more serious than the normal route. It combines snow, rock, and mixed climbing on a long mountain ridge. The route is exposed and can require careful route-finding, especially where the ridge narrows or the rock is poor. It is typically undertaken in stable conditions and with solid alpine experience. Objective dangers include loose rock, snow instability, and cornices near the crest. It is a more committing line than the standard glacier ascent.
Route Outline
Approach from the south-west side of Dent d'Herens
Gain the south-west ridge from glacier or snow slopes
Climb the ridge on mixed and rocky terrain
Continue on the upper ridge to the summit
Descend by the same line or via the normal route if conditions require