The is a
River in
Switzerland ,
Austria and
Germany . It is a
Tributary of the
Danube , with 517 km in length.
The source is located in the
Swiss Alps in the
Engadin region which is named after the river, called ''En'' there. It runs north-eastwards, entering Austria, and from
Landeck eastwards through the Austrian state of
Tyrol and its capital,
Innsbruck , and passes the border to
Bavaria near
Kufstein .
On Bavarian territory the river runs northwards and passes the cities of
Rosenheim ,
Wasserburg and
Waldkraiburg ; then it turns east, runs through
Mühldorf and
Neuötting and is enlarged by two major affluents, the
Alz and the
Salzach .
From here to the Danube, it forms the border between Germany (Bavaria) and Austria (
Upper Austria ). Cities on this last section of the river are
Simbach ,
Braunau and
Schärding .
In the city of
Passau the Inn finally enters the Danube (as does a third river there).
