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
Industrial design rights in the European Union of industrial design rights is required by the Agreement on Trade-Related Aspects of Intellectual Property Rights (TRIPS, Arts. 25 & 26), to which the European Union is a party. The Regulation on Community designs provides for the recognition of the priority date of an application for design right registration in a country which is either a member of the World Trade Organization or a party to the Paris Convention for the Protection of Industrial Property. On 1 January 2008, the European Union became a party to the Geneva Act of the Hague Agreement Concerning the International Registration of Industrial Designs