The Ill (all capitals: ILL) is a tributary of the
Rhine
The Rhine ( ) is one of the List of rivers of Europe, major rivers in Europe. The river begins in the Swiss canton of Graubünden in the southeastern Swiss Alps. It forms part of the Swiss-Liechtenstein border, then part of the Austria–Swit ...
in the western
Austria
Austria, formally the Republic of Austria, is a landlocked country in Central Europe, lying in the Eastern Alps. It is a federation of nine Federal states of Austria, states, of which the capital Vienna is the List of largest cities in Aust ...
n state of
Vorarlberg
Vorarlberg ( ; ; , , or ) is the westernmost States of Austria, state () of Austria. It has the second-smallest geographical area after Vienna and, although it also has the second-smallest population, it is the state with the second-highest popu ...
.
It flows from the northern slopes of the
Silvretta
The Silvretta Alps are a mountain range of the Central Eastern Alps shared by Tirol, Vorarlberg (both in Austria) and Graubünden (Switzerland). The Austrian states of Tirol and Vorarlberg are connected by a pass road ( Silvretta Hochalpenst ...
mountain range and then runs north-west through Vorarlberg. The Ill passes through the
Montafon
Montafon ( in local dialect: "''Muntafu''") is a long valley in the westernmost Austrian federal state of Vorarlberg.
It is traversed by the river Ill (Vorarlberg) and extends from the city of Bludenz and the Verwall Alps in the north, to th ...
and valleys and the town
Feldkirch. It joins the river Rhine a few kilometers northwest of Feldkirch ("Illspitz"), at the border with
Switzerland
Switzerland, officially the Swiss Confederation, is a landlocked country located in west-central Europe. It is bordered by Italy to the south, France to the west, Germany to the north, and Austria and Liechtenstein to the east. Switzerland ...
. The Ill has several dams with hydroelectric power stations.
Rivers of Vorarlberg
Bregenz Forest Mountains
Verwall Alps
Silvretta Alps
Rivers of Austria
{{Vorarlberg-geo-stub