Bernese Alps through which the Rhône finds its way to Lake Geneva, to the Grimsel Pass or, depending on the definition, to the river Reuss (thus including the Uri Alps). The principal ridge, a chain that runs from west (Dent de Morcles) to east (Sidelhorn), whose highest peak is the Finsteraarhorn, forms the watershed between the cantons of Bern and Valais. Except for the westernmost part, it is also the watershed between the Rhine (North Sea) and the Rhône (Mediterranean Sea). This chain is not centered inside the range but lies close (10 to 15 km) to the Rhône on the south.
Marseilles moraine The Marseilles moraine turns west, at the bluff between Oswego and Yorkville. The Minooka Ridge continues southward to the Illinois River. The Marseilles moraine follows nearly the southeast bluff of Fox River to the mouth of the stream, its outer border being nowhere more than and usually less than from the stream. The width in Kendall County is only 2 or 3 miles, but increases to 5 or 6 miles in northeastern LaSalle County, near the north bluff of the Illinois River. At the Illinois Valley it changes from south-southwest to a south-southeast course. It maintains a to width through