Switzerland. Canton Graubünden. Val Roseg. View from the Roseg restaurant on the mountainous valley and the Piz Roseg (3,937 m). The Val Roseg is a valley of the Swiss Alps, located on the north side of the Bernina Range in the canton of Graubünden (Engadin). The valley is drained by the Ova da Roseg, a tributary of the Flaz (Inn basin), at Pontresina. 20.06.2020 © 2020 Didier Ruef