North-east ridge from the Lac des Dix / Dixence side
A second established way to climb Rosablanche is from the Lac des Dix side, using the north-east side of the mountain. This is also an alpine snow-and-glacier route rather than a pure hiking path. The difficulty is usually modest in stable conditions, but the route depends on snow quality and safe glacier passage. The upper mountain is broad and can be confusing in poor weather, so navigation is important. Crevasse danger and cornices may be present depending on season. It is a documented alternative to the more common south-west approach.
Route Outline
Lac des Dix / Dixence side -> approach to the glacier basin below Rosablanche
Gain the north-east ridge or upper snow slopes
Follow the ridge and final summit slopes to the top
Descend by the same line or via the normal route if conditions allow