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
West Branch Magalloway River West Branch Magalloway River The West Branch of the Magalloway River is a river in northernmost New Hampshire and northwestern Maine in the United States. It is a tributary of the Magalloway River, located in the Androscoggin River watershed of Maine and New Hampshire. The river rises in the northeastern corner of Pittsburg, New Hampshire, at the outlet of Boundary Pond, whose western end just touches the Canada–United States border. The river flows in a curving route to the east, entering Maine after two miles. The river passes through a wide, wet valley known as Moose Bog, then joins the