This section of land is divided lengthwise by the Rhône , a river that flows westward from the Rhône glacier in the Central Alps to Lake Geneva ​ — a distance of about 100 miles [ 170 km ] .
This section of land is divided lengthwise by the Rhone , a river that flows westward from the Rhone glacier in the Central Alps to Lake Geneva ​ — a distance of about 100 miles [ 170 km ] .