Genève, canton, southwestern Switzerland. The canton lies between the Jura Mountains and the Alps and consists mainly of its capital, the city of Geneva (Genève). It is one of the smallest cantons in the Swiss Confederation. Bordering on Vaud canton for 3.5 miles (5.5 km) in the extreme north, it is otherwise surrounded by French territory—the département of Haute Savoie to the south and that of Ain west and north. The canton is drained by...