The Inntal is the valley containing the Inn river in Switzerland, Austria and Germany. The valley has a total length of 517 km and the biggest city located in Inntal is Innsbruck. The valley is divided into the following sections based on regional and national frontiers: Engadin (Switzerland) Tyrolean Inntal (Tirol, Austria) Bavarian Inntal (Bavaria, Germany) Upper Austrian Inntal (Upper Austria, Austria) From Wikipedia