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
Indian River (Manistique River tributary) Indian River (Manistique River tributary) Indian River is a tributary of the Manistique River on the Upper Peninsula of Michigan in the United States. It rises out of Hovey Lake at on Hiawatha National Forest land in Alger County and flows south and east through a lake district and on through Schoolcraft County. The river flows into the 8,659 acre (35 km²) Indian Lake at and flows out at . It then flows east and south about 2.5 miles where it merges with the Manistique River, which then flows through Manistique and into Lake Michigan at . Major tributaries include