Putting aside the valleys of the Ticino and Inn, Switzerland may thus be described as consisting of three great river valleys (Rhône, Rhine and Aare) with the smaller one of the Thur, which all lie to the north of the main chain of the Alps and include the region between the Alps and the Jura. If matters are examined more carefully, it can be noted that the Rhône and Rhine valleys are shut off from that of the Aare (and of the Thur) by the great northern outlier of the Alps, which consists of the Bernese and Glarus Alps. Two wide and undulating valleys (Aare and Thur) and two deeply cut trenches (Rhône and Rhine) thus lie on the northern slope of the Alps, to the north and south respectively of the great northern outlier of the Alps. The main chain of the Alps rises in Swiss territory to the height of in the loftiest summit or Dufourspitze (wholly Swiss) of Monte Rosa, though the Dom (), in the Mischabel range, is the highest mountain mass which is entirely within Switzerland. The great northern outlier attains a height of in the Finsteraarhorn, while the lowest level () within the Confederation, is on Lake Maggiore (on the course of the Ticino). The highest permanently inhabited village in Switzerland is Juf () at the head of the Avers valley (a tributary of the Rhine), while the lowest is Ascona (), on Lake Maggiore.