Swiss Alps and Bernina Range are the highest ranges of the country, they contain respectively 38, 9 and 1 summit over 4000 metres. The lowest range is the Appenzell Alps culminating at 2,500 metres. Western Alps Eastern Alps The north side of the Swiss Alps is drained by the Rhône, Rhine and Inn (which is part of the Danube basin) while the south side is mainly drained by the Ticino (Po basin). The rivers on the north empty into the Mediterranean, North and Black Sea, on the south the Po empty in the Adriatic Sea. The major triple watersheds in the Alps
Sol Duc River River rises near Bogachiel Peak and flows south of the Sol Duc River. The confluence of the two forms the Quillayute River. The Sol Duc flows generally west and northwest, collecting numerous headwater tributaries. Bridge Creek, which flows from Heart Lake in the high alpine Soleduck Park, joins the Sol Duc in Soleduck Flats. Rocky Creek flows from Mount Appleton near Appleton Pass, joining the Sol Duc from the north. Seven Lakes Creek flows from Seven Lakes Basin through several lakes including Soleduck Lake, to join the Sol Duc River from the south. The river plunges over Sol Duc Falls,