Complex sentence: Grimsel Pass (German: "Grimselpass") (el.2165 m.) is a Swiss high mountain pass between the valley of the Rhone River in the canton of Valais and the Haslital (upper valley of the Aar river) in the canton of Bern.
Split into simpler sentences: Grimsel Pass (German: "Grimselpass") (el.2165 m.) is a Swiss high mountain pass. It connects the valley of the Rhone River in the canton of Valais and the Haslital (upper valley of the Aar river) in the canton of Bern.