Inn River

A large right- (south-) bank tributary of the Danube River, the Inn River is a major right- (south-) bank tributary of the Danube River. The Inn River stretches for 317 miles (510 kilometers). It begins in Switzerland's Lake Lughino and runs northeast through western Austria and southern Germany. The Engadin is the name of the river's Swiss part (q.v.). In Austria, the river flows through the Oberinntal (upper Inn Valley), which is located above Zirl, and then into the Unterinntal (lower Inn Valley), which encompasses Innsbruck. Except at Kufstein, where it cuts between the Bavarian Alps on the west and the Kaisergebirge on the east, the Unterinntal is a wide river. The Inn travels north and then east as it enters Bavaria, Germany, before meeting its biggest tributary, the Salzach River. It forms part of the Austro-German border until it meets the Danube at Passau, Germany, a short distance downstream. Agricultural regions run along the river's middle and lower sections, which are tapped for hydroelectric power at various spots.

Length: 510 km