(1,120 m).

At Göschenen (1,057 m) it is joined by the Göschenerreuss, sourced by the glaciers Dammagletscher (3,430 m) and Flachensteinfirn (3,150 m) besides several others. From here it forms the main valley of the canton of Uri, the Urner Reusstal, passing below Wassen (840 m), Gurtnellen (720 m), Amsteg and Silenen (500 m), and