Ill (Vorarlberg)

General data
- Name: Ill (Vorarlberg)
- Water system: Rhine
- Water type: River
- Progression: Rhine -> Waal -> Upper Merwede (Boven Merwede) -> Lower Merwede (Beneden Merwede) -> Old Meuse (Oude Maas) -> Het Scheur -> Nieuwe Waterweg (New Waterway) -> North Sea -> Atlantic Ocean -> Planet Earth
- Climates: Temperate, Continental
- Continents: Europe
- Countries: Austria, France, Germany, Liechtenstein, Netherlands, Switzerland
Description
The Ill ( ILL) is a 72-kilometre-long tributary of the Rhine in the western Austrian state of Vorarlberg. It flows from the northern slopes of the Silvretta mountain range and then runs north-west through Vorarlberg. The Ill passes through the Montafon and Walgau [als; de; fr; nl] valleys and the town Feldkirch. It joins the river Rhine a few kilometers northwest of Feldkirch ("Illspitz"), at the border with Switzerland. The Ill has several dams with hydroelectric power stations.