The Lake of Geneva, stretching in crescent shape between Switzerland and France, curving round the northern border of the French department of Haute-Savoie; length, 45 m.; greatest breadth, 9 m.; maximum depth, 1022 ft. On the French side precipitous rocks descend to the water's edge, and contrast with the wooded slopes of the north. The water is of a deep-blue color; many streams flow into it, notably the Rhone, which flows out at Geneva.