Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Inn is a river in Switzerland, Austria and Germany. It is a right tributary of the Danube and is approximately 500km long. The highest point of its drainage basin is the summit of Piz Bernina, at 4,049 metres. The source is located in the Swiss Alps, near St. Moritz in the Engadin region, which is named after the river (the river is called "En" in Romansh). It runs north-eastwards, entering Austria, and from Landeck eastwards through the Austrian state of Tyrol and its capital, Innsbruck (bridge over the Inn), and passes the border to Bavaria near Kufstein.