Arve Arve The river Arve () flows for approximately 100 km (62 miles) through France, in the "département" of Haute-Savoie, and (for a few kilometers) in Switzerland. It is a left tributary of the Rhône. Rising in the northern side of the Mont Blanc massif in the Alps, close to the Swiss border, it receives water from the many glaciers of the Chamonix valley (mainly the Mer de Glace) before flowing north-west into the Rhône on the west side of Geneva, where its much higher level of silt brings forth a striking contrast between the two rivers. The Arve flows through
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,