Sanna
The Sanna is a river of Tyrol, Austria, a tributary of the Inn. The Sanna is formed near Tobadill by the confluence of the rivers Rosanna and Trisanna . It flows into the Inn at the small town of Landeck. It is 7. 1 kilometres long. Its basin area is 727 km². The villages Pians and Grins are situated at its waterfront.