Ill (Vorarlberg)

The Ill (all capitals: ILL) is a 72-kilometre-long (45 mi) tributary of the Rhine in the western Austrian state of Vorarlberg.

Ill
The Ill near Gisingen [de; ru; uz] (district of Feldkirch)
Location
Country	Austria
State	Vorarlberg
Physical characteristics
Source
• coordinates	46°52′9″N 10°6′32″E
• elevation	2,240 m (7,350 ft)
Mouth
• coordinates	47°17′57″N 9°33′31″E
• elevation	1,811 m (5,942 ft)
Length	72 km (45 mi)
Basin features
Progression	Rhine→ North Sea

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.