The Ziller river is an approximately 47 km long right-side tributary to the Inn River, in the Zillertal in Tyrol, Austria. It springs from the ridge of the Zillertal Alps, and feeds the Zillergründl Dam. In Mayrhofen it receives the Zemmbach (that in turn receives the Tuxerbach). By Zell am Ziller it receives the Gerlosbach, before it flows into the Inn by Strass im Zillertal.
For historical reasons, the Ziller for most of its course makes up the border between the Diocese of Innsbruck on the west and the Archdiocese of Salzburg on the east. The Ziller today shows a good presence of brown- and rainbow trout, as well as grayling. It is up to 20 m wide and 2 m deep, and it has an average discharge of 43.1 m³/s.
There is diferents spots along the Ziller valley where you able to admire the fabulous and caudal afluent called like the area. With many posibilities to enjoy about the river like goes along the bike road what is besides the river. Another activities like raffting or cayoning with the different services who guides and profesional of the area offer to you, you will enjoy of the enveroniment and make you feel the nature of this fantastic valley.