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
Platte River (Michigan) wetlands give way to tamarack and arborvitae swamp near Big Platte Lake and Little Platte Lake. The Platte River originates from Long Lake in Grand Traverse County, through Sucker Creek to http://www.longlakeassociation.com/lake-facts.html Lake Dubonnet flowing west and eventually turning north, flowing into Mud Lake and then into Lake Ann. From the east, additional drainage into Lake Ann comes from Ransom Creek, which drains Ransom Lake, and in turn Bellows Lake and Lyons Lake. From Lake Ann, the Platte River runs west and south. It collects the outflow of Upper and Lower Woodcock Lakes then flows through Bronson Lake. The river