Separated by the strait of Promenthoux into "Grand" and "Petit" portions, it has Haute-Savoie département on one shore and Lausanne on another.
Vevey, Montreux, and Evian-les-Bains all lie on it, and its counterpart to the north is at Neuchatel. Subject to frequent seiches in the water level, it is formed by three rivers, including the Dranse and Venoge. Separated by the strait of Promenthoux into "Grand" and "Petit" portions, it has Haute-Savoie département on one shore and Lausanne on another. For 10 points, the Rhône River flows through what lake, lying on the border of France and Switzerland and located in the namesake canton of the Swiss capital?
Vevey, Montreux, and Evian-les-Bains all lie on it, and its counterpart to the north is at Neuchatel.
Lake {Geneva} [or Lac {Leman}us; or {Lac de Genève}; or {Genfersee}]