Geneva 15.7%. Of the agricultural land, 0.3% is used for growing crops. Of the water in the municipality, 0.2% is composed of lakes and 2.9% is rivers and streams. The altitude of Geneva is , and corresponds to the altitude of the largest of the Pierres du Niton, two large rocks emerging from the lake which date from the last ice age. This rock was chosen by General Guillaume Henri Dufour as the reference point for surveying in Switzerland. The second main river of Geneva is the Arve, which flows into the Rhône just west of the city centre. Mont Blanc
History of Geneva and in 1523 marched into Geneva in a ceremony designated to appease its population, and tried to gain the support of the Geneva merchants by promising them a share in the trade with the Kingdom of Portugal (his wife's country of origin) and its territories in Brazil. However, the independence faction in Geneva did not accept these gestures. Another political crisis occurred in 1524, when the treasurer of Geneva, Bernard Boulet, a supporter of Savoy rule, was accused by the Grand Council of embezzlement. He reacted to the accusations by appealing to Charles III to curtail the powers of the