Alps rivers such as the Danube have major tributaries flowing into them that originate in the Alps. The Rhône is second to the Nile as a freshwater source to the Mediterranean Sea; the river begins as glacial meltwater, flows into Lake Geneva, and from there to France where one of its uses is to cool nuclear power plants. The Rhine originates in a 30 square kilometre area in Switzerland and represents almost 60 percent of water exported from the country. Tributary valleys, some of which are complicated, channel water to the main valleys which can experience flooding during the snow melt
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