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This line will take you deeply into Monte Rosa Lys and Valesia valleys.
The way up is from the Gressoney side and you can descend from where you came up or choose one of the many alternatives.
For the way up skins are required, it's an easy itinerary ideal for backcountry beginners but you will find alone in the mountains far from the lifts! you will start close to the piste entering a narrow couloir to have access to a large valley surrounded by high peaks.
Reaching Zube is for sure a big achievement and you will be pleased by the beautiful view on Monte Rosa range that you can see from the top.
The way down is from the slope you climbed.