Rienz

The Rienz ( _it. Rienza, _de. Rienz) is a river in the province of Bolzano, Northern Italy. Its source is located at 2,180 m of altitude, in the Dolomites, south of Toblach: near Toblach it enters the Pustertal (Val Pusteria), and, after 90 km, it meets the Isarco River in the city of Brixen, at 550 m of altitude.

The Rienz flows through the following municipalities (source to mouth): Toblach, Niederdorf, Welsberg-Taisten, Olang, Rasen-Antholz, Bruneck, St. Lorenzen, Kiens, Vintl, Mühlbach, Rodeneck and Brixen.

The most significant affluents are:
*the Aurino, forming the Ahrntal and responsible of 1/3 of the total discharge
*the Rio Gadera (Val Badia)
*the Rio Anterselva
*the Rio Braies
*the Rio Fundres

The maximum discharge of the Rienz is around 60 m³/s.