Grosses Wannenhorn is a 3906-metre mountain peak in the Bernese Alps, in the Swiss canton of Valais near the village of Fiesch.
It is part of the Walliser Fiescherhörner.
The mountain separates the Aletsch Glacier to the west from the Fiescher Glacier to the east.

Grosses Wannenhorn is rocky, while its southern counterpart, Kleines Wannenhorn, is somewhat flatter.
The mountain's east side is heavily glaciated, while the west side is a steep slope intermittently broken by ice fields.

The mountain was first successfully climbed by Gottlieb Stuber and team in 1864.
Grosses Wannenhorn is a 3906-metre mountain peak in the Bernese Alps, in the Swiss canton of Valais near the village of Fiesch. It is part of the Walliser Fiescherhörner. The mountain separates the Aletsch Glacier to the west from the Fiescher Glacier to the east.
Grosses Wannenhorn is rocky, while its southern counterpart, Kleines Wannenhorn, is somewhat flatter. The mountain's east side is heavily glaciated, while the west side is a steep slope intermittently broken by ice fields.
The mountain was first successfully climbed by Gottlieb Stuber and team in 1864.
Grosses Wannenhorn