The Allgäu or Allgovia is a region in Swabia in southern Germany. It covers the south of Bavarian Swabia, southeastern Baden-Württemberg, and parts of Austria. The region stretches from the pre-alpine lands up to the Alps. The main rivers flowing through the Allgäu are the Lech and Iller. Allgäu is not an administrative unit. The alpine regions of the Allgäu rise over 2,000 metres in elevation and are popular for winter skiing.