Vorarlberg not Austro-Bavarian, but rather an Alemannic dialect; it therefore has much more in common culturally with its (historically) Alemannic-speaking German-speaking Switzerland, Liechtenstein, Swabia and Alsace than with rest of Austria, southeastern Bavaria, and South Tyrol. Vorarlberg is almost completely mountainous and has been nicknamed the ‘Ländle’ meaning ‘small land’. The main rivers in Vorarlberg are the Ill (running through the Montafon and Walgau valleys into the Rhine), the Rhine (forming the border with Switzerland), the Bregenzer Ache and the Dornbirner Ach. One of the shortest rivers is the Galina. Important lakes, apart from Lake Constance are Lüner Lake, Silvretta Lake,
Vorarlberg Rhine Valley areas of Bregenz and Dornbirn, live about 180,000 people, around half the population of Vorarlberg. The "green lung" of this region is the Vorarlberg Ried, which is on the border with Switzerland and is surrounded by the settlements of Vorarlberg on three sides. Geographically the Lower Rhine Valley also includes the municipality of Altach. Due to its historical links with the municipality of Götzis and membership of the district of Feldkirch, Altach is often considered part of the Oberland. Vorarlberg Rhine Valley The Vorarlberg Rhine Valley (), also called the Vorarlberg Oberland and Unterland, is a section of the Alpine