Ticino River

Course

Only about the first sixth of the lake lies in Switzerland. Four major tributaries join the Ticino in Lago Maggiore. The Verzasca and the Maggia enter the lake in Switzerland in Tenero and in Locarno/Ascona, respectively. The Tresa drains the Lago di Lugano and flows in Luino into Lago Maggiore. The Toce drains many valleys to the northwest of Lago Maggiore and joins the lake near Feriolo. It surpasses the Ticino in average discharge volume and contains the highest peak of the catchment area of the Ticino river system, the Grenzgipfel (4,617 metres (15,148 feet)) in the Monte Rosa massif.