At the Belfort Gap south of the Vosges Mountains it separates the Rhone basin in the southwest from the drainage of Meuse and Rhine in the northeast, turns southwards to the Swiss Jura Mountains and passes between Lake Geneva and Lake Neuchâtel. It reaches the Bernese Alps where it crosses the Jungfrau and the Finsteraarhorn, at 4,274 m the high point of the watershed, before dropping to the Grimselpass, rising to the Dammastock before crossing the Furkapass and joining the Alpine divide near the Witenwasserenstock, the triple watershed of the Rhone, Rhine and Po rivers. East of here it crosses the Gotthard Pass and runs along the Adula Alps until it reaches the tripoint of the Rhine, Po and Danube basins at the roof of Europe near Piz Lunghin west of the Maloja Pass.